Question

By how much does the gravitational potential energy of a 55-kg pole vaulter change if her center of mass rises about 4.0 m during the jump?

Answer 1

Answer:

Gravitational potential energy of any object is 2156 Joules.

Explanation:

Given that,

Mass of the pole vaulter, m = 55 kg

We need to find the gravitational potential energy of a pole vaulter change if her center of mass rises about 4.0 m during the jump, h = 4 m

We know that the gravitational potential energy of any object is given by :

$P=mgh$

$P=55\ kg\times 9.8\ m/s^2\times 4\ m$

P = 2156 Joules

So, gravitational potential energy of any object is 2156 Joules. Hence, this is the required solution.