Answer:147.15joules
Explanation:work needed=force×gravity
force=5×9.81=49.05newtones
work=49.05×3=147.15 joules
Answer:
147 Joules
Step-by-step explanation:
force needed =weight of box= m.g =5x9.81=49 N
Work done =Force x distance =49x3=147 J
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