# Kinematics-Average Speed and Instantaneous Velocity (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 104 - 108 of 108

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## Question number: 104

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

The rate of burning of fuel in a rocket is 30 gm/sec. and comes out with and velocity 6 x 10 3 m/s. The force exerted by gas on rocket will be –

### Choices

Choice (4) Response

a.

200 N

b.

300 N

c.

180 N

d.

2.5 x l0 6 N

## Question number: 105

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

A body of mass 10 kg moving with a velocity of 5 m/s, rebounds on a wall with same velocity. The impulse on the body is -

### Choices

Choice (4) Response

a.

100 Ns

b.

30 Ns

c.

120 Ns

d.

60 Ns

## Question number: 106

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

A cricket ball of mass 100 g is moving with a velocity of 10m/sec and is hit by a bat so that the ball is turned back with a velocity of 20 m/sec; the force on the ball acts for 0.01 sec, then the average force exerted by the bat on the ball will be

### Choices

Choice (4) Response

a.

480 N

b.

40 N

c.

200 N

d.

48 N

## Question number: 107

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

The rate of burning of fuel in a rocket is 50 gm/sec. and comes out with and velocity 4 x 10 3 m/s. The force exerted by gas on rocket will be –

### Choices

Choice (4) Response

a.

2.5 x l0 4 N

b.

250 N

c.

2.5 x l0 6 N

d.

200 N

## Question number: 108

» Kinematics » Average Speed and Instantaneous Velocity

Appeared in Year: 2016

MCQ▾

### Question

Two cars P and Q start from a point at the same time in a straight line and their positions are represented by and . At what time do the cars have the same velocity?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page