Momentum + conservation of momentum

Question 1

define momentum

Answer 1

a measurement of how hard it is to stop a moment

Question 2

what is the equation for momentum?

Answer 2

momentum, P (kgm/s) = mass, m x velocity, v (m/s) - (obvs u can rearrange this equation)

Question 3

what is meant by ‘during a collision, momentum is conserved’?

Answer 3

for a closed system, the total momentum before a collision is equal to the total momentum after a collision