Multiple Choice Section
Question 3.

Question 4.
Question 5.
Question to think about:
- What would happen if a building or bridge was resonated at its resonant frequency
Answers.
- c) An object striking another object and they stick together. Momentum before = momentum after
- a) Momentum before = momentum after
- a) 20-2*15cos(30)= 15.4 N, assume the top of the page is North if it is not given
- c)
- c)