In the given diagram, with what force mu...

In the given diagram, with what force must the man pull the rope to hold the plank in position? Mass of the man is 80kg. Neglect the weights of plank, rope and pulley. Take.

200N

300N

600N

150N

Text Solution

Verified by Experts

The correct Answer is:

From combine FBD of man and plank:
`F+F+2F=80g`
implies `F=20g=200N`

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