Mechanics

This is the first topic for grade 12. You need to understand it and apply your knowledge in answering qustions based on it.

Read on the following:

1. Definition of momentum

2. SI units of momentum

3. Formula

4. How to use the formula in problem solving.

Activity 1

A tennis ball has a mass of 50g and is hit by a player at a velocity of 25m/s.  Calculate the momentum of the ball  (3)

Activity 2

A bus has a momentum of 20 500 kg.m/s and is traveling at 120 km/h. Calculate the mass of the bus    (4)  

 

Lesson Files
Lesson Questions