impulse

Question 1

calculate velocity

Answer 1

displacement/time

Question 2

Calculation for momentum

Answer 2

P=MV
mass x velocity

Question 3

how to calculate force

Answer 3

F=MA
mass x acceleration

Question 4

define impulse and its units

Answer 4

a measure of the force applied for a specific time

Ns (Newton seconds)

Question 5

calculate impulse

Answer 5

force x time

impulse is equal to a change in momentum

Question 5

what impulse do you get when you accelerate and decelerate

Answer 5

positive / negative

Question 6

what should you include in a force time graph

Answer 6

y axis = force (N)
x axis = time (s)

area of semicircles - e.g. accelerating + is bigger
+ and - signs
label footfall -(FF) and ground reaction force +(GRF)

1. what is the net impulse
2. accelerating/decelerating/at a constant
3. time in the race