Q. The work done against gravity in taking $10 k g$ mass at $1$ metre height in $1 sec$ will be:

1416 197 Rajasthan PMTRajasthan PMT 2000Work, Energy and Power Report Error

A

98 J

94%

B

150 J

0%

C

600 J

0%

D

980 J

6%

Solution:

Work $W = m g h$
$= 10 \times 9.8 \times 1 = 98 J$