First slide

Work

Question

A horizontal force of 5 N is required to maintain a velocity of 2 m/s for a block of 10 kg mass sliding over a rough surface. The work done by this force in one minute is

Easy

A

600 J
B

60 J
C

6 J
D

6000 J

Solution

$W = F \times s = F \times v \times t = 5 \times 2 \times 60 = 600 J$

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