Q8: Prb 1 - This problem has three parts to this. I will type out the questions for each of the three parts along with additional info in "Description" below.

Question

A boy is riding a bicycle. The boy and the bicycle together have a combined mass of m = 147 kg and a linear momentum of magnitude P = 1072 kg*m/s.

Part a) Write an expression for the boy's speed, v, in terms of the variables given in the problem statement.

Part b) What is the speed, v, in meters per second?

Part c) How much kinetic energy do the bike and rider together have, in joules?

Answer 1

P=mv thus v=P/m a)

v =7.29 m/s b)

KE = 1/2mv² = 2909 Joules c)