Description

This mock test of Projectile MCQ Level - 1 for Class 11 helps you for every Class 11 entrance exam.
This contains 40 Multiple Choice Questions for Class 11 Projectile MCQ Level - 1 (mcq) to study with solutions a complete question bank.
The solved questions answers in this Projectile MCQ Level - 1 quiz give you a good mix of easy questions and tough questions. Class 11
students definitely take this Projectile MCQ Level - 1 exercise for a better result in the exam. You can find other Projectile MCQ Level - 1 extra questions,
long questions & short questions for Class 11 on EduRev as well by searching above.

QUESTION: 1

Two paper screens A and B are separated by 150 m. Abullet pierces A and B. The hole in B is 15 cm below the hole in A. If the bullet is travelling horizontally at the time of hitting A, then the velocity of the bullet at A is (g = 10 ms^{-2}).

Solution:

QUESTION: 2

A projectile can have the same range R for two angles of projection. It t_{1 }and t_{2} are the times of flight in the two cases, then what is the product of two times of flight?

Solution:

QUESTION: 3

A ball is thrown at different angles with the same speedu and from the same point and it has the same rangein both the cases. lf y_{1} and y_{2} are the heights attainedin the two cases, then y_{1}+ y_{2} is equal to

Solution:

QUESTION: 4

The equation of motion of a projectile is The horizontal component of velocity is 3 ms^{-1}. What is the range of the projectile?

Solution:

QUESTION: 5

The range R of projectile is same when its maximumheights are h_{1} and h_{2}. What is the relation betweenR, h_{1} ,and h_{2}?

Solution:

QUESTION: 6

The friction of air causes a vertical retardation equalto 10 % of the acceleration due to gravity (take g =10 ms^{-2}). The maximum height will be decreased by

Solution:

QUESTION: 7

The friction of air causes a vertical retardation equal to 10 % of the acceleration due to gravity (take g = 10 ms^{-2}). The maximum height will be decreased by

a. 8 %

b. 9 %

c. 10 %

d. 11 %

Q.

In the above part , the time taken toreach the maximum height will be decreased by

Solution:

QUESTION: 8

The friction of air causes a vertical retardation equal to 10 % of the acceleration due to gravity (take g = 10 ms^{-2}). The maximum height will be decreased by

a. 8 %

b. 9 %

c. 10 %

d. 11 %

Q.

In the above part , the time takento return to the ground from the maximum height

Solution:

QUESTION: 9

At what angle with the horizontal should a ball be thrown so that the range R is related to the time of flight as R = 5T^{2}? (Take g = 10 ms^{-2})

Solution:

QUESTION: 10

A ball thrown by one player reaches the other in 2 s.The maximum height attained by the ball above the point of projection will be about:

Solution:

Given T is 2 sec

As we know, T = 2uSinθ / g

2 = 2uSinθ/g

uSinθ = g

Squaring on both sides

∴ u²sin²θ = g² — (1)

H = u²Sin²θ/(2g)

From equation (1)

H = g²/(2g)

H = g/2

H = 4.9 m (or) H = 5.0m (if g is taken as 10m/s²)

QUESTION: 11

A ball rolls off the top of a staircase with a horizontal velocity μ ms^{-1}. If the steps are h metre high and b metre wide, the ball will hit the edge of the n th step, if

Solution:

QUESTION: 12

A projectile is projected with initial velocity (6iˆ + 8 ˆj) ms^{-1}. If g = 10 ms^{-2}, then horizontal range is

Solution:

QUESTION: 13

At a height 0.4 m from the ground, the velocity of aprojectile in vector form is The angle of projection is

Solution:

QUESTION: 14

A projectile is thrown in the upward direction makingan angle of 60° with the horizontal direction with avelocity of 150 ms^{-1}. Then the time after which its inclination with the horizontal is 45° is

Solution:

QUESTION: 15

A number of bullets are fired in all possible directionswith the same initial velocity u. The maximum area of ground covered by bullets is

Solution:

QUESTION: 16

A person takes an aim at a monkey sitting on a treeand fires a bullet. Seeing the smoke the monkey beginsto fall freely then the bullet will

Solution:

QUESTION: 17

A person sitting in the rear end of a compartment throwsa ball towards the front end. The ball follows a parabolic path. The train is moving with uniform velocity of 20 ms^{-1}. A person standing outside on the ground also observes the ball. How will the maximum heights (h_{m})

attained and the ranges (R) seen by the thrower and the outside observer compare each other?

Solution:

QUESTION: 18

Two stones are projected with the same speed butmaking different angles with the horizontal. Their rangesare equal. If the angle of projection of one is p /3 andits maximum height is h_{1} then the maximum height ofthe other will be

Solution:

QUESTION: 19

A ball is projected from the ground at angle θ with thehorizontal. After 1 s it is moving at angle 45° with thehorizontal and after 2 s it is moving horizontally. Whatis the velocity of projection of the ball?

Solution:

QUESTION: 20

A body is projected horizontally from the top of a towerwith initial velocity 18 ms^{-1}. It hits the ground at angle 45°. What is the vertical component of velocity when strikes the ground?

Solution:

QUESTION: 21

A plane flying horizontally at 100 ms^{-1} releases an object which reaches the ground in 10 s. At what angle with horizontal it hits the ground?

Solution:

QUESTION: 22

A hose lying on the ground shoots a stream of waterupward at an angle of 60° to the horizontal with thevelocity of 16 ms^{-1}. The height at which the water strikes the wall 8 m away is

Solution:

QUESTION: 23

There are two values of time for which a projectile is atthe same height. The sum of these two times is equalto (T= time of flight of the projectile)

Solution:

QUESTION: 24

A golfer standing on level ground hits a ball with avelocity of u = 52 ms^{-1} at an angle α above thehorizontal. If tan α = 5/12, then the time for which the ball is at least 15 m above the ground will be (take g = 10 ms^{-2})

Solution:

QUESTION: 25

The ceiling of a hall is 40 m high. For maximum horizontal distance, the angle at which the ball may be thrown with a speed of 56 ms^{-1} without hitting the ceiling of the hall is (Take g = 9.8 ms^{-2})

Solution:

QUESTION: 26

What is the angle of projection for a bullet fired over a horizontal plane, when horizontal range is equal to 4 times the maximum height?

Solution:

QUESTION: 27

A body is projected up along a smooth inclined planewith velocity u from the point A as shown in Fig.The angle of inclination is 45° and the top is connected to a well of diameter 40 m. If the body just manages tocross the well, what is the value of u ? Length of inclinedplane is

Solution:

QUESTION: 28

A rifle shoots a bullet with a muzzle velocity of 400 ms^{-1 }at a small target 400 m away. The height above the targetat which the bullet must be aimed to hit the target is(g = 10 ms^{-2}).

Solution:

QUESTION: 29

A projectile is fired from level ground at an angle qabove the horizontal. The elevation angle Ø of thehighest point as seen from the launch point is related to θ by the relation

Solution:

QUESTION: 30

A projectile has initially the same horizontal velocityas it would acquire if it had moved from rest with uniform acceleration of 3 ms^{-2} for 0.5 min. If the maximum height reached by it is 80 m, then the angle of projection is(g = 10 ms^{-2})

Solution:

QUESTION: 31

**What is the momentum of a body of 2 kg at its highest point, when thrown with a velocity of 15 m/s at an angle of of 70 ^{o} with the horizontal?**

Solution:

QUESTION: 32

The speed of a projectile at its maximum height is times its initial speed. If the range of the projectileis P times the maximum height attained by it, P isequal to

Solution:

QUESTION: 33

The trajectory of a projectile in a vertical plane is y = ax -bx^{2}, where a and b are constants andx and y are, respectively, horizontal and vertical distances of the projectile from the point of projection.The maximum height attained by the particle and the angle of projection from the horizontal area

Solution:

QUESTION: 34

A projectile is given an initial velocity of iˆ + 2 ˆj. The cartesian equation of its path is (g = 10 ms^{-2}).

Solution:

QUESTION: 35

A particle is projected from the ground with an initial speed of v at an angle θ with horizontal. The average velocity of the particle between its point of projection and highest point of trajectory is

Solution:

QUESTION: 36

Two balls A and B are thrown with speeds u and u/2 ,respectively. Both the balls cover the same horizontal distance before returning to the plane of projection. Ifthe angle of projection of ball B is 15° with the horizontal, then the angle of projection of A is

Solution:

QUESTION: 37

A body of mass m is projected horizontally with avelocity v from the top of a tower of height h and itreaches the ground at a distance x from the foot of thetower. If a second body of mass 2 m is projectedhorizontally from the top of a tower of height 2 h, itreaches the ground at a distance 2x from the foot ofthe tower. The horizontal velocity of the second body is

Solution:

QUESTION: 38

A car is moving horizontally along a straight line with auniform velocity of 25 ms^{-1}. A projectile is to be fired from this car in such a way that it will return to it after it has moved 100 m. The speed of the projection must be

Solution:

QUESTION: 39

The horizontal range and maximum height at tained by a projectile are R and H, respectively. If a constant horizontal acceleration a = g/4 is imparted to the projectile due to wind, then its horizontal range and maximum height will be

Solution:

QUESTION: 40

A particle is projected with a certain velocity at anangle α above the horizontal from the foot of aninclined plane of inclination 30°. If the article strikesthe plane normally, then α is equal to

Solution:

### Projectile motion (part 1)

Video | 09:09 min

### Inside level 1

Doc | 1 Page

### Projectile Motion

Video | 09:26 min

- Projectile MCQ Level - 1
Test | 40 questions | 40 min

- Projectile Practice Level - 1
Test | 40 questions | 80 min

- Friction MCQ Level - 1
Test | 20 questions | 20 min

- Crystals MCQ Level – 1
Test | 10 questions | 30 min

- Test: Projectile Motion
Test | 10 questions | 10 min