Water is used as a coolant in automobiles radiators because it has high specific heat capacity. So, it absorbs a large amount of heat for a degree rise in temperature.
Work = force x distance
So 88x15 = work
1,320N/m = work
F=ma
W=F*distance
375J=(45kg)(a)(5m)
a=375/(45*5)
a=1.67m/s^2
F=ma = 45kg * 1.67m/s^2=75N
Or go straight there like this:
W=F*distance
375J=F(5m)
F=375J/5m
F=75N
Hope this helps. Thanks
Work = Force * distance
W = Fd
Given F = 500 N, d = 10 m
W = (500)(10)
W = 5000 J
The work done is 500 Joules. The time of 4 s is irrelevant in this case.
Heat energy (and light energy if they ask for two answers)