i)
The work went into overcoming friction is given by formula
In our case, µ=0.3, m=50 kg, s=12 m
Using (1) we got
W=1764 J
Answer:
1764 J
ii)
The work went into accelerating the box is given by formula
In our case, F=150 N, s=12 m
Using (2) we got
W=1800 J
Answer:
1800 J
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