# Laws of Motion-Equilibrium of Concurrent Forces (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 1 - 3 of 7

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## Question number: 1

» Laws of Motion » Equilibrium of Concurrent Forces

Appeared in Year: 2012

MCQ▾

### Question

A particle is acted upon by a force given by where α and β are positive constants. At the point x = 0, the particle is –

### Choices

Choice (4) Response

a.

In unstable equilibrium

b.

In stable equilibrium

c.

In neutral equilibrium

d.

None of the above

## Question number: 2

» Laws of Motion » Equilibrium of Concurrent Forces

Appeared in Year: 2012

MCQ▾

### Question

Two blocks (1 and 2) of equal mass m are connected by an ideal string (see figure below) over a frictionless pulley. The blocks are attached to the ground by springs having spring constants k1 and k2 such that k1 > k2.

Initially, both springs are unstretched. The block 1 is slowly pulled down a distance x and released. Just after the release the possible value of the magnitudes of the acceleration of the blocks a1 and a2 can be –

### Choices

Choice (4) Response

a.

Either or

b.

Either or

c.

d.

## Question number: 3

» 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

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