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3 votes
3 votes
A 2 kg cat is stuck in a tree 10 m above the ground. How much GPE does it have?

A. 250 J
B. 150 J
C. 200 J
D. 20 J

User Zuza
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3.1k points

2 Answers

28 votes
28 votes

Answer:

20 J

Step-by-step explanation:

User Mgnb
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3.1k points
16 votes
16 votes

Answer:

196J, but C. at 200 J comes close.

Step-by-step explanation:

Potential energy due to gravity is given by:

PEgrav = mass • g • height

where g is the acceleration due to gravity. We'll use 9.8 N/kg (on Earth).

PEgrav = mass • g • height

PEgrav = (2 kg) • (9.8 N/kg) • (10 m)

PEgrav = 196 N*m

1 N*m = 1 Joule

PEgrav = 196 J

C. at 200 J comes close. The solution probably used a value of g equal to 10 N/kg)

User Amerzilla
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3.2k points