MPB 8115 Lecture 24: phys week 13B review

A skydiver of mass 'm' jumps from a hot air balloon and falls a distance 'd' before reaching a terminal velocity of magnitude 'v'. Assume that the magnitude of the acceleration due to gravity is 'g'. 

What is the work wd done on the skydiver, over the distance d, by the drag force of the air?

A skydiver of mass m jumps from a hot air balloon and falls a distance d before reaching a terminal velocity of magnitude v. Assume that the magnitude of the acceleration due to gravity is g.

-What is the work (Wd) done on the skydiver, over the distance, by the drag force of the air?

-Find the power (P d) supplied by the drag force after the skydiver has reached terminal velocity v.

A 57 g tennis ball is served at 45 m/s. If the ball started from rest, what impulse was applied to the ball by the racket?