Question

Which of the following will give $1J$ of work?

• A. $F=1N,S=1m,\theta =0^0$
• B. $F=1N,S=1m,\theta ={90}^0$
• C. $F=0.1N,S=1m,\theta =0^0$
• D. $F=0.1N,S=10m,\theta ={90}^0$

Answer 1

Answer: (A)

$F=1N,S=1m,\theta =0^0$

$W=F.S.cos\theta$
For $F=1,S=1,\theta =0^0$, $W=1\times 1\times cos{0}^0=1J$