The speed of a moving object is determined to be 0.12 m/s. This speed is equal to :

A. 2.16 km/h

B. 1.08 km/h

C. 0.432 km/h

D. 0.0216 km/h

A boy is sitting on a merry-go-round which is moving with a constant speed of 20 ms^-1. This means that the boy is :

A. at rest

B. moving with no acceleration

C. in accelerated motion

D. moving with uniform velocity

In which of the following cases of motion, the distance moved and the magnitude of displacement are equal?

A. if the car is moving on straight road

B. if the car is moving on circular road

C. if the pendulum is moving to and fro

D. if a planet is moving around the sun

A freely falling object travels 4.9 m in 1^st second, 14.7 m in 2^nd second, 24.5 m in 3^rd second, and so on. This data shows that the motion of a freely falling object is a case of:

A. uniform motion

B. uniform acceleration

C. no acceleration

D. uniform velocity

When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because:

A. the car has a uniform acceleration

B. the directions of car varies continuously.

C. the car travels unequal distances in equal time intervals

D. the car travels equal distances in unequal time intervals