A 5kg bag is thrown off a 20m high roof, after it was at rest initially. Calculate the total gravitational potential energy of the bag as it was thrown off of the roof.
ANSWER: So, the formula for gravitational potential energy is- Ep=m×g×h. The value of g(gravitational value) is 9.8 ms^-2. So, 5×9.8×20= 980J.
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Answer:
answer is 980 joule
Explanation:
m=5kg
g=9.8m/s²
h=20m
so potential energy =mgh
=5×9.8×20
=980 joule
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