Answer:
Work done=114, 777 J
Power= 1912.95 W
Explanation:
Work done is the product of force and distance moved, expressed as
W=Fd
But F=mg hence substititing back into the formula of work done
W=mgd
Where m is mass, g is acceleration due to gravity, d is distance
Since they are six people, the mass will be 65*6=390 kg
Taking g as 9.81 m/s² and d as 30 m
W=390*9.81*30=114,777 J
Power is defined as the rate of work done per unit time
P=W/t
Where W is work done, P is power and t is time.
Substituting t for 60 seconds and W with 114,777 J
P=114,777÷60=1,912.95 W
