Description

This mock test of Centre Of Mass NAT Level - 1 for Physics helps you for every Physics entrance exam.
This contains 10 Multiple Choice Questions for Physics Centre Of Mass NAT Level - 1 (mcq) to study with solutions a complete question bank.
The solved questions answers in this Centre Of Mass NAT Level - 1 quiz give you a good mix of easy questions and tough questions. Physics
students definitely take this Centre Of Mass NAT Level - 1 exercise for a better result in the exam. You can find other Centre Of Mass NAT Level - 1 extra questions,
long questions & short questions for Physics on EduRev as well by searching above.

*Answer can only contain numeric values

QUESTION: 1

A block of mass 0.50 * kg* is moving with a speed of 2.00

Solution:

* p_{i}* =

The correct answer is: 0.67

*Answer can only contain numeric values

QUESTION: 2

A force time graph for a linear motion is shown in figure where the segments are circular. The linear momentum gained between 0 to 8 *second* is :

Solution:

Change in momentum = area ** F**-

The correct answer is: 0

*Answer can only contain numeric values

QUESTION: 3

A bullet of mass * m* = 50

Solution:

The correct answer is: 4

*Answer can only contain numeric values

QUESTION: 4

A shell of mass 100 * kg* is fired horizontally from a canon with a mass of 5 × 10

Solution:

* m* = 100

Initially system is at rest

The correct answer is: 1.5

*Answer can only contain numeric values

QUESTION: 5

Two masses of 1** gm** and 4

Solution:

KE= 1/2 m*v^2

Momentum (p)=m*v

Set each of the 1 gram and 4 grams KE to 8:

KE=1/2 *1* (4)^2=8

KE=1/2 *4* (2)^2=8

The 1 gram takes 4 m/s to achieve KE of 8.

The 4 gram takes 2 m/s to achieve KE of 8.

Therefore, the ratio of their linear momentum (m*v) is:

1*4/4*2= 4/8= 1/2

*Answer can only contain numeric values

QUESTION: 6

A ball of mass 50** gm** is dropped from a height

Solution:

The correct answer is: 1.05

*Answer can only contain numeric values

QUESTION: 7

A ball collides with an inclined plane of inclination θ after falling through a distance * h*. If it moves horizontally just after the impact, the coefficient of restitution is, when θ = 30:

Solution:

where are velocities components of wedge and ball along the impulsive force after collision and are velocities components of wedge and ball along the impulsive force before collision

Wedge is at rest so,

conserving the linear momentum in * x*-direction

On dividing equation (2) by (1)

The correct answer is: 0.333

*Answer can only contain numeric values

QUESTION: 8

A body of mass * m *= 3.513

Solution:

As the lowest no. of significant figure is 3.

The correct answer is: 17.6

*Answer can only contain numeric values

QUESTION: 9

Three particles of mass 20** gm**, 30

Solution:

The correct answer is: 16.007

*Answer can only contain numeric values

QUESTION: 10

Two particles of mass 1**kg** and 0.5* kg* are moving in the same direction with speed of 2

Solution:

The correct answer is: 3.333

### Centre of Mass - Quiz 1

Video | 49:40 min

### Centre of Mass - Lecture 1

Video | 59:46 min

### Centre of Mass (NCERT)

Doc | 42 Pages

### Centre of Mass pratice

Doc | 3 Pages

- Centre Of Mass NAT Level - 1
Test | 10 questions | 30 min

- Centre Of Mass NAT Level - 2
Test | 10 questions | 45 min

- Centre Of Mass Practice Level -1
Test | 30 questions | 60 min

- Centre Of Mass MCQ Level - 1
Test | 10 questions | 30 min

- Centre Of Mass MCQ Level - 1
Test | 30 questions | 30 min