153k views
1 vote
An 85-kg rock climber, when reaching the summit, built up 250,000 J of gravitational potential energy. How high did the climber go?

User Moodboom
by
7.8k points

2 Answers

1 vote

It's 300! I just got it correct:)

User Srinath Thota
by
7.9k points
3 votes

Answer: 300 m

Explanation:

A body possesses gravitational potential energy due to virtue of its height above the surface. It is measured in Joules. it is given by:

G.P.E = m g h

where, m is the mass, g is the acceleration due to gravity and h is the height.

Given: m = 85 kg

G.P.E = 250,000 J

g = 9.8 m/s²

⇒ h = (G.P.E}/ mg

⇒h = (250,000) / ( 85 × 9.8) = 300 m.

The climber climbed 300 m high.

User Robotwasp
by
7.7k points