A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 76.2-kg water-skier has an initial speed of 5.0 m/s. Later, the speed increases to 10.4 m/s. Determine the work done by the net external force acting on the skier.
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Answer:
Work done will be equal to 3186.396 J
Explanation:
We have mass m = 76.2 kg
Initial velocity u = 5 m/sec
Final velocity v = 10.4 m/sec
We have to find the work done
From work energy theorem work done is equal to change in kinetic energy
w = 3168.396 J
So work done will be equal to 3186.396 J