Magnus has reached the finals of a strength competition. in the first round, he has to pull a city bus as far as he can. one end of a rope is attached to the bus and the other is tied around magnus's waist. if a force gauge placed halfway down the rope reads out a constant 2450 newtons while magnus pulls the bus a distance of 1.50 meters, how much work does the tension force do on magnus?

W = -3675 J

Explanation:

given,

Force applied by Magnus to pull the bus = 2450 N

Magnus pull the bus to the distance of = 1.50 m

Work done is equal to the product of force applied in the direction of the motion to the displacement in that direction.

work done by the tension force

Work done = Force × displacement

W = F x d

W = -2450 x 1.50

W = -3675 J

the work done is negative because Magnus move in the opposite direction of the tension.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s