Question

A boy is sitting on a marry-go-round which is moving with a constant speed of 10 ms-1. This means that the boy is
(a)at rest
(b) moving with no acceleration
(c)moving with uniform velocity
(d)in accelerated motion​

Answer 1

What is Acceleration ?

The change in velocity per unit time is called acceleration .

Now, here the word Velocity is used.

Velocity is displacement per unit time and both displacement and velocity depends on both magnitude and direction.

VELOCITY IS A VECTOR QUANTITY .

Now, we are ready to attain your question.

In the Question , the boy is riding on merry-go round which is a ride that moves in a circular path.

But it is given that the Ride is moving in uniform velocity i.e. 10m/s which means its speed is constant whereas its velocity is changing just because its direction is changing continuously as it isnot moving in a straight path but in a circular motion.

As the velocity is changing , we can say that the motion of merry go round is accelerated .

Ans - option (D) It is accelerated .