If the displacement of an object is proportional to square of time, then the object moves with

Increasing acceleration

Uniform acceleration

Uniform velocity

Decreasing acceleration

Q:

The numerical ratio of displacement to distance for a moving object is

always more than 1

more than or equal to 1

always less than 1

less than or equal to 1

Q:

The total path length travelled by a body in a given interval of time is called

Displcement

Uniform motion

Acceleration

Distance

Q:

A car is travelling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleration of – 0.5 m/s^{2}. Find how far the car will go before it is brought to rest?

980 m

625 m

1620 m

620 m

Q:

Suppose a boy is enjoying a ride on a marry go round which is moving with a constant speed of 10 ms^{-1}. It implies that the boy is

In accelerated motion

At rest

Moving with no acceleration

Moving with uniform velocity

Q:

A car of mass 1000 kg is moving with a velocity of 10 m/s. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of 25 s will be

25 m/s

10 m/s

10.5 m/s

90 m/s

Q:

A particle is moving in a circular path of radius r. The displacement after half a circle would be