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sp2606 [1]
3 years ago
9

The force needed to lift an object is equal in size to the gravitational force on the object.

Social Studies
1 answer:
saul85 [17]3 years ago
4 0

Answer:

400 joules

Explanation:

force = mass × 10 N/kg

8kg× 10 N/kg=80N

80N x 5m= 400 joules

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