Awater-skier is being pulled by a tow rope attached to a boat. as the driver pushes the throttle forward, the skier accelerates. a 70.3-kg water-skier has an initial speed of 6.10 m/s. later, the speed increases to 11.3 m/s. determine the work done by the net external force acting on the skier?

Work done, W = 3180.372 Joules

Explanation:

It is given that,

Mass of the water skier, m = 70.3 kg

Initial speed of the water skier, u = 6.1 m/s

Final speed of the skier, v = 11.3 m/s

We need to find the work done by the net external force acting on the skier. It is given by using work energy theorem as :

W = 3180.3 J

So, the work done by the net external force acting on the skier is 3180.372 Joules. Hence, this is the required solution.        

3. dark matter

empty space could also be a simple vacuum