# Laws of Motion (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 7 - 9 of 20

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## Question number: 7

» Laws of Motion » Law of Conservation of Linear Momentum

Appeared in Year: 2013

MCQ▾

### Question

A bullet of mass m is fired horizontally into a large sphere of mass M and radius R resting on a smooth horizontal table.

The bullet hits the sphere at a height h from the table and sticks to its surface. If the sphere starts rolling without slipping immediately on impact, then

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 8

» Laws of Motion » Equilibrium of Concurrent Forces

Appeared in Year: 2015

MCQ▾

### Question

Two blocks of masses 5m and 4m in contact on a smooth table. A force P is first applied horizontally on block of mass 5 m and then on 4m. The contact forces between the two blocks in the two cases in the ratio

### Choices

Choice (4) Response

a.

3: 2

b.

5: 3

c.

2: 3

d.

1: 2

## Question number: 9

» Laws of Motion » Force and Inertia

MCQ▾

### Question

A water drop of mass m = 80 mg is introduced between two plates with separation d = 0.06 mm. Calculate the force of attraction between the plates.

### Choices

Choice (4) Response

a.

3.11 N

b.

3.0 N

c.

3.87 N

d.

2.17 N

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