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Answer:
t = 1.4 s
Explanation:
momentum of the trapeze just before hitting the net = 50 x 14 kg m/s
= 700 kg m/s
final momentum = 0
change in momentum required = 700 - 0 = 700
If F be the maximum force and t be the time of action of force
impulse = force x time = F x t
500 x t
impulse = change in momentum
500 x t = 700
t = 1.4 s .