Calculate Work Done By Car Against Gravity In Moving Along Straight Horizontal Road

Calculate the work done by a car against gravity in moving along a straight horizontal road. The mass of … is 400 kg and the distance…


Weight of the car (mg) vertically downward and car is moving along horizontal road, so displacement of the car is in the along horizontal, i.e. angle between them is 90°.
Work done by weight of the car
W = Fs cos 90° = 0 (cos 90° = 0)
Hence, the work done by car against gravity will also be zero.