A boy is sitting on a merry-go-round which is moving with a constant speed. This means that the boy is _____.
moving with uniform velocity
at rest
moving with no acceleration
in accelerated motion
A uniform circular motion has an acceleration acting towards its centre, that we call centripetal acceleration.
A boy is sitting on a merry-go-round which is moving with a constant speed of 10 mS−1. This means that the boy is :
(a) at rest (c) in accelerated motion
(b) moving with no acceleration (d) moving with uniform velocity
A boy is sitting in a merry-go-round which is moving at a constant speed of 10 m/s. This means that the boy is