Question

Fleas have remarkable jumping ability. A 0.40 mg flea, jumping straight up, would reach a height of 35 cm if there were no air resistance. In reality, air resistance limits the height to 20 cm .

A) What is the flea's kinetic energy as it leaves the ground?

K =	1.37×10−3 mJ

Part B

At its highest point, what fraction of the initial kinetic energy has been converted to potential energy?

Express your answer using two significant figures.

f =

I found part A i need help with part B

Answer 1

h o 35一