Answer: weightlifter D
Explanation: solution attached:
Work is the product of force and distance
W= F x d = mg x d
Substitute the values:
Weightlifter A
W = 100 kg x 9.8 m/s² x 2.25 m
= 2205 J
Weightlifter B
W = 150 kg x 9.8 m/s² x 1.76 m
= 2587.2 J
Weightlifter C
W = 200 kg x 9.8 m/s² x 1.50m
= 2940 J
Weightlifter D
W= 250 kg x 9.8 m/s² x 1.25 m
= 3062.5 J
So weightlifter D has the greatest amount of work