impulse Flashcards
1
Q
calculate velocity
A
displacement/time
2
Q
Calculation for momentum
A
P=MV
mass x velocity
3
Q
how to calculate force
A
F=MA
mass x acceleration
4
Q
define impulse and its units
A
a measure of the force applied for a specific time
Ns (Newton seconds)
5
Q
calculate impulse
A
force x time
impulse is equal to a change in momentum
5
Q
what impulse do you get when you accelerate and decelerate
A
positive / negative
6
Q
what should you include in a force time graph
A
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)
- what is the net impulse
- accelerating/decelerating/at a constant
- time in the race
7
Q
A
