Momentum and Impulse

Question 1

Define momentum

Answer 1

The quantity of motion possessed by a moving body

Question 2

What is the equation of momentum and give the units in the equation

Answer 2

Momentum(kgm/s)=mass(kg)xvelocity(m/s)

Question 3

Define impulse

Answer 3

The time taken for a force to be applied to an object or a body

Question 4

What is the formula for impulse and give the unit

Answer 4

Impulse(N/s)=Force(N)xtime(s)

Question 5

What is the first direction that an impulse graph will always go

Answer 5

Downwards (negative) then upwards (positive)

Question 6

Interpret the following situations on an impulse time graph for a 100m sprint and mention where each might occur in the race
1.Area below X-axis>Area above X-axis
2.Area below X-axis=Area above X-axis
3.Area below X-axis<Area above X-axis

Answer 6

1.Deceleration (end of the race)
2. Constant velocity (middle of the race)
3. Acceleration (start of the race)