How much work has John accomplished by lifting a 2 kg object 4 m? A 78.4j B 9.8 C 19.6j D 39.2j

asked Dec 1, 2022 201k views

4 votes

How much work has John accomplished by lifting a 2 kg object 4 m?

A 78.4j
B 9.8
C 19.6j
D 39.2j

by Pere

7.2k points

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7 votes

Answer:

Weight= 2kg Height= 4m G= 9.8

We know work done = W= FD

W= (mg)(D)

W= (2*9.8)(4)

W=78.4 joules or 78.4 j

Crafter answered Dec 8, 2022

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