Question

During a race, you are moving on a leveled track and acquire a speed $\text{3}$ times the initial speed. What was the change in your potential energy?

• A. It does not change.
• B. It becomes 1.5 times that of your initial potential energy.
• C. It becomes 3 times that of your initial potential energy.
• D. It becomes 9 times that of your initial potential energy.

Answer 1

The correct option is A

It does not change.

Potential energy is mathematically represented by the formula,
$\text{P.E. = m}$ $\times g\times h,$
where m is the mass,
g is acceleration due to gravity and
h is the height above the ground in meters.
As you are running on a leveled track, there is no change in potential energy because there is no change in the height of the body from the ground.