Newton Flashcards
1
Q
what are newtons first law
A
NEWTON’S 1st LAW: If no resultant force aces on an object, its motion will be constant (velocity will not change).
2
Q
what is newtons second law
A
F=ma
Force (N) = mass (k9) x acceleraEion (m/s2)
3
Q
what is newtons 3rd law
A
NEWTON’S 3rd LAW: For every action (force), there is an equal and opposite reaction (force) (this is NOT balanced forces).
4
Q
how do you work out stoppinng distance
A
STOPPING DISTANCE = THINKING DISTANCE + BRAKING DISTANCE
5
Q
what can thinking distance be affected by
A
- Speed (proportional)
- Distractions
- Alcohol
- Drugs
- Tiredness
6
Q
what can breaking distance be affected by:
A
- Speed: if vx2, braking distance x4 as Ek = 1/2 M V squared
— Condition Of brakes, tires & road
- Weather conditions
7
Q
what is the equation for momentum
A
momeneum (kgm/s) = mass (k9) x velociEy (m/s)
