Question

In the given diagram, with what force must the man pull
the rope to hold the plank in position?
Mass of the man is 80 kg. Neglect the
weights of plank, rope and pulley. Take
g = 10 ms
(a) 200 N
(b) 300 N
(c) 600 N
(d) 150 N​

Answer 1

Answer:

diagram......???.....