how do i go about in solving this?

Sean climbs a tower that is 84.6 m high to make a jump with a parachute. The mass of Sean plus the parachute is 66.8 kg. If U = 0 at ground level, what is the potential energy of Sean and the parachute at the top of the tower?

PE= totalmass*g*height

To solve this problem, we can use the formula for potential energy:

Potential Energy (PE) = mass (m) * gravity (g) * height (h)

First, we need to find the potential energy at the top of the tower. We are given the height of the tower (h) which is 84.6 meters, and the mass (m) which is the sum of Sean's mass and the parachute's mass, 66.8 kg.

The value of gravity (g) on Earth is approximately 9.8 m/s^2, which we will use for this calculation.

Now, let's plug the values into the formula:

PE = 66.8 kg * 9.8 m/s^2 * 84.6 m

Calculating this, we get:

PE = 54,547.68 J (Joules)

Therefore, the potential energy of Sean and the parachute at the top of the tower is 54,547.68 Joules.