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a man of mass 50 kg stands on a horizontal ice surface and there is a block of mass 80 kg lying on the same surface. he holds a rope in his hands whose other end is tied to the block. both the man and block are initially stationary. the man now pulls the rope with a constant force and the man moves with acceleration 2m^2/s^2. calculate the work done by the man on the block in first 4 seconds

a man of mass 50 kg stands on a horizontal ice surface and there is a block of mass 80 kg lying on the same surface. he holds a rope in his hands whose other end is tied to the block. both the man and block are initially stationary. the man now pulls the rope with a constant force and the man moves with acceleration 2m^2/s^2. calculate the work done by the man on the block in first 4 seconds

Grade:10

2 Answers

Vikas TU
14149 Points
13 years ago

1920 Joule

indrayani bargaje
33 Points
13 years ago

thanks!!!

but the answer is 1000J

i didnt get the method to find it...so if possible...give the method...thanks in advance!!

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