Test: Level - 2 Laws Of Motion - 2


25 Questions MCQ Test Physics Class 11 | Test: Level - 2 Laws Of Motion - 2


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This mock test of Test: Level - 2 Laws Of Motion - 2 for Class 11 helps you for every Class 11 entrance exam. This contains 25 Multiple Choice Questions for Class 11 Test: Level - 2 Laws Of Motion - 2 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Level - 2 Laws Of Motion - 2 quiz give you a good mix of easy questions and tough questions. Class 11 students definitely take this Test: Level - 2 Laws Of Motion - 2 exercise for a better result in the exam. You can find other Test: Level - 2 Laws Of Motion - 2 extra questions, long questions & short questions for Class 11 on EduRev as well by searching above.
QUESTION: 1

 A student calculates the acceleration of m1 in figure shown as a1 = . Which assumption is not required to do this calculation.

                  

Solution:
QUESTION: 2

 Which graph shows best the velocity-time graph for an object launched vertically into the air when air resistance is given by |D| = bv? The dashed line shows the velocity graph if there were no air resistance.

Solution:
*Multiple options can be correct
QUESTION: 3

Two men of unequal masses hold on to the two sections of a light rope passing over a smooth light pulley. Which of the following are possible?

                             

Solution:
*Multiple options can be correct
QUESTION: 4

Adjoining figure shows a force of 40 N acting at 30° to the horizontal on a body of mass 5 kg resting on a smooth horizontal surface. Assuming that the acceleration of free-fall is 10 ms_2, which of the following statements A, B, C, D, E is (are) correct?

[1] The horizontal force acting on the body is 20 N

[2] The weight of the 5 kg mass acts vertically downwards

[3] The net vertical force acting on the body is 30 N

Solution:
*Multiple options can be correct
QUESTION: 5

 For ordinary terrestrial experiments, which of the following observers below are inertial.

Solution:
*Multiple options can be correct
QUESTION: 6

In the system shown in the figure m1 > m2. System is held at rest by thread BC. Just after the thread BC is burnt :

                      

Solution:
*Multiple options can be correct
QUESTION: 7

 A particle is resting on a smooth horizontal floor. At t = 0, a horizontal force starts acting on it. Magnitude of the force increases with time according to law F = a.t, where a is a constant. For the figure shown which of the following statements is/are  correct ?

                         

Solution:
QUESTION: 8

A cyclist of mass 30 kg exerts a force of 250 N to move his cycle. acceleration is 4 ms−2. force of friction between road and tyres will be

Solution:
*Multiple options can be correct
QUESTION: 9

Figure shows the displacement of a particle going along the x-axis as a funtion of time :

                  

Solution:
*Multiple options can be correct
QUESTION: 10

A force of magnitude F1 acts on a particle so as to accelerate it from rest to a velocity v. The force F1 is then replaced by another force of magnitude F2 which decelerates it to rest.

Solution:
*Multiple options can be correct
QUESTION: 11

A board is balanced on a rough horizontal semicircular log. Equilibrium is obtained with the help of addition of a weight to one of the ends of the board when the board makes an angle q with the horizontal. Coefficient of friction between the log and the board is

                       

Solution:
*Multiple options can be correct
QUESTION: 12

A stationary body of mass m is slowly lowered onto a massive plateform of mass M (M >> m) moving at a speed V0 = 4 m/s as shown in fig. How far will the body slide along the platform (m = 0.2 and g = 10 m/s2) ?

                      

Solution:
*Multiple options can be correct
QUESTION: 13

A block of mass 2.5 kg is kept on a rough horizontal surface. It is found that the block does not slide if a horizontal force less than 15 N is applied to it. Also it is if found that it takes 5 second to slide throughout the first 10 m if a horizontal force of 15 N is applied and the block is gently pushed to start the motion. Taking g = 10 m/s2, then

Solution:
*Multiple options can be correct
QUESTION: 14

The coefficient of friction between 4 kg and 5 kg blocks is 0.2 and between 5 kg block and ground is 0.1 respectively. Choose the correct statements

                             

Solution:
*Multiple options can be correct
QUESTION: 15

In a tug-of-war contest, two men pull on a horizontal rope from opposite sides. The winner will be the man who

Solution:
*Multiple options can be correct
QUESTION: 16

A man pulls a block heavier than himself with a light horizontal rope. The coefficient of friction is the same between the man and the ground, and between the block and the ground.

                  

Solution:
*Multiple options can be correct
QUESTION: 17

In figure, two blocks M and m are tied together with an inextensible and light string. The mass M is placed on a rough horizontal surface with coefficient of friction m and the mass m is hanging vertically against a smooth vertical wall. The pulley is frictionless.

                     

Choose the correct statement(s)

Solution:
QUESTION: 18

When a net force act on a body, it produces acceleration in body in direction of net force which is directly proportional to net force acting on body and inversely proportional to its mass. This statement is called

Solution:
*Multiple options can be correct
QUESTION: 19

Imagine a situation in which the horizontal surface of block M0 is smooth and its vertical surface is rough with a coefficient of friction m

                

Identify the correct statement(s)

Solution:
*Multiple options can be correct
QUESTION: 20

In above problem, choose the correct value(s) of F which the blocks M and m remain stationary with respect to M0

Solution:
QUESTION: 21

In the figure the tension in the diagonal string is 60 N.

                     

. Find the magnitude of the horizontal force and  that must be applied to hold the system in the position shown.

Solution:
*Multiple options can be correct
QUESTION: 22

 In the above questions what is the weight of the suspended block ?

Solution:
*Multiple options can be correct
QUESTION: 23

A particle of mass m is constrained to move on x-axis. A force F acts on the particle. F always points toward the position labeled E. For example, when the particle is to the left of E, F points to the right. The magnitude of F is constant except at point E where it is zero.

The system is horizontal. F is the net force acting on the particle. The particle is displaced a distance A towards left from the equilibrium position E and released from rest at t = 0

             What is the period of the motion ?

Solution:
*Multiple options can be correct
QUESTION: 24

 Velocity-time graph of the particle is

Solution:
*Multiple options can be correct
QUESTION: 25

Find minimum time it will take to reach from  to 0.

Solution:

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