A body of mass m is lifted by a man to a height of one meter in 30 s . Another man lifts the same mass to the same height in 60 s . The work done by them are in the ratio

Question

A body of mass m is lifted by a man to a height of one meter in 30 s . Another man lifts the same mass to the same height in 60 s . The work done by them are in the ratio (A) 1:2 (B) 1:1 (C) 2:1 (D) 4:1

Tardigrade Admin · Accepted Answer

Work done by both the persons is the same and is given as, W=mgh It does not depend upon the time taken to perform the work.

Q. A body of mass $m$ is lifted by a man to a height of one meter in $30 s$ . Another man lifts the same mass to the same height in $60 s$ . The work done by them are in the ratio

$1 : 2$

$1 : 1$

$2 : 1$

$4 : 1$

Work done by both the persons is the same and is given as,
$W = m g h$
It does not depend upon the time taken to perform the work.

Q. A body of mass m is lifted by a man to a height of one meter in 30s . Another man lifts the same mass to the same height in 60s . The work done by them are in the ratio

1:2

1:1

2:1

4:1