M3.5 Newtonian physics Flashcards
1
Q
what is newtons first law
A
if an object has a resultant force of 0 then the object remains at a constant velocity
2
Q
What is Newtons second law
A
if there is a force acting on a body then the velocity will change
F = ma
3
Q
what is newtons third law
A
every force has an equal and opposite force
4
Q
using newtons second law explain the physical quantity represented by a force against time graph [2]
A
area under the graph is impulse/ change in momentum
newtons second is F = m(change in v)/change in time (f=ma)
F(change in time) = change in momentum
5
Q
A