Question

Jack lifted a 25kg mass to a height of 2.0m in 10.0seconds. on the other hand james was able to lift the same height in 2.0 seconds, who among them has a greater power?

Answer 1

$P_{Jack}=25\cdot 9.8\cdot2/10=49 \ (W)$

$P_{James}=25\cdot 9.8\cdot2/2=245 \ (W)$ . So,

$P_{Jack}<P_{James}$