Question

12. A force F = 2î+2j N displace a particle through
S = 2i + 2k m in 16 s. The power developed by F is
(a) 0.25 Js^-1
(b) 25 Js^-1
(c) 225 Js^-1
(d) 450Js^-1​

Answer 1

Answer:

answer is a

work=force i*displacement

work=2*2=4 because displacement and force have same direction only along x-axis(I vector)

power=work/time

=4/16

=.25