3) The tension in the rope pulling a water skier is 500N, and the resistive force of the water is 400N. The total mass of the waterskier and skis is 78kg
a) Draw a free-body force diagram for the water skier
(b) calculate the acceleration (c) calculate the resultant force

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

The best answer i can think of is b