Question
A tow truck pulls a car from rest onto a level road. The tow truck exerts a horizontal force of 1500 N on the car. The frictional force on the car is 810 N. Calculate the work done by each of the following forces on the car as the car moves forward 12 m:
(a) the force of the tow truck on the car
(b) the force of friction
(c) the normal force
(d) the force of gravity
I just need help with c and d because I don't understand how you can find the fg and FN without knowing the mass of the car
(a) the force of the tow truck on the car
(b) the force of friction
(c) the normal force
(d) the force of gravity
I just need help with c and d because I don't understand how you can find the fg and FN without knowing the mass of the car
Answers
Scott
the forces in c and d are normal (perpendicular) to the direction of motion of the car
they do no work
they do no work