Answer :
F = ma = m dv/dt
F dt = m dv
integrate both sides ( assuming constant force , mass) , zero inital conditions
Ft = mv
mv = P
P = Ft = 5 * 100 = 500 N.s
F dt = m dv
integrate both sides ( assuming constant force , mass) , zero inital conditions
Ft = mv
mv = P
P = Ft = 5 * 100 = 500 N.s