Question # 1

During the upward motion of the projectile, the vertical component of velocity.

Choose an answer

Decreases

Increases

Remains constant

None of these

A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:

Choose an answer

0.5 m/sec2

5 m/sec2

1.5 m/sec2

9.8 m/sec2

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Choose an answer

1 : 2 : 3

1 : 3 : 5

1 : 4 : 9

None of the above

Velocity of a body changes if

Choose an answer

direction of the body changes

speed of the body changes

neither speed nor direction changes

either speed or direction changes

The decrease in velocity per unit time is called

Choose an answer

deceleration

acceleration

uniform acceleration

variable acceleration

A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?

Choose an answer

4 m/s

2 m/s

8 m/s

1 m/s

If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be

Choose an answer

20 ms^-2

10 ms^-2

2 ms^-2

1 ms^-2

Unit of impulse in

Choose an answer

Newton

Kg m

Kg m/s

Joule

Bodies which falls freely under gravity provides good example of motion under:

Choose an answer

Uniform acceleration

Non-uniform acceleration

Uniform velocity

None of these

When brakes are applied to a fast moving car, the passenger will be thrown:

Choose an answer

Forward

Backward

Downward

none of these

A railway engine (mass 10⁴kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is

Choose an answer

3,600 N

7,200 N

10,000 N

100,000 N

Angular momentum

Choose an answer

Scalar

Axial vector

Polar vector

At 45° angle

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Choose an answer

mg

m (g+a)

m (g - a)

0

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Choose an answer

20 minutes

48 minutes

10 minutes

5 minutes

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Choose an answer

0.1 m/s

10 m/s

1 m/s

0.01 m/s

More Classes

Other Links

ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer