Question

A sled is at rest at the top of a slope 2 m high. The sled has a mass of 45 kg. What is the sled's potential energy?

Answer 1

Answer:

PE = 882 J

Explanation:

Through the International System we know that the gravity of the earth is 9.8 m/s², so...

Data:

• m = 45 kg
• g = 9.8 m/s²
• h = 2 m
• PE = ?

Formula:

• $\boxed{\bold{PE=m*g*h}}$

Replace and solve:

• $\boxed{\bold{PE=45\ kg*\ 9.8\frac{m}{s^{2}}*2\ m}}$

• $\boxed{\boxed{\bold{PE=882\ J}}}$

The potential energy of the sled is 882 Joules.

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