Which one of the following is not a unit of energy?

Options

A. electorn-volt
B. calorie
C. joule
D. watt

Answer

D

Explanation

Work done by the force =K.E. acquired by the ship `therefore F xx s=1/2 mv^(2)`
`therefore v^(2)=(2Fs)/(m)= (2 xx 5 xx 10^(4) xx 3)/(3 xx 10^(7))`
`=10 xx 10^(-3)=10^(-2)`
`therefore v=sqrt((10^(-2)))=0.1 m//s`