3. Komal throws a 0.3 kg rock off the edge of a 10m tall building at an angle of 35º from the horizontal. The rock has an initial speed of 30ms.[g=-9.8m/s). What is the gravitational potential energy of the rock as soon
as it leaves Sam's hand?
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Answer:
29.4 Joules
Explanation:
Potential Energy
= mgh
=0.3 * 9.8m/s² * 10m
= 29.4 Joules
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