Question

Pooja bends to touch her toes. Is the motion of her head an example of uniform motion or accelerated motion? Explain.

Answer 1

Step 1: Uniform or accelerated motion

1. Uniform motion is an object moving in a straight line at a constant speed.
2. We know that the direction of motion changes continuously in a circular motion when the direction changes. As a result, circular motion is accelerated, and hence, it is termed an accelerated motion.
3. When a Pooja bends to touch her toes, the motion of her head is an example of accelerated motion because the direction of her head is a circular path.

So, the direction of the velocity changes at every instance of time and thus, her head is in accelerated motion.