A force F=3i+cj+2k acting on a particle causes a displacement S=-4i+2j-3k in its own direction. If the work done is 6J, then the value of c will be

Question

Accepted Answer

Correct answer: A. (a) W=F .s= (3i+cj+2k ) . (-4i+2j-3k )=-12+2c-6 Work done =6J (given) ∴ -12+2c-6=6 ⇒ c=12

$A force F = 3 i + c j + 2 k acting on a particle causes a displacement S = - 4 i + 2 j - 3 k in its own direction. If the work done is 6J, then the value of c will be$