15 terms

Impulse

time multiplied by force

Momentum

velocity multiplied by mass

elastic collision

objects bounce off each other - energy may be conserved

inelastic collision

objects stick together - energy lost

mass

kilograms

velocity

m/s

acceleration

change in velocity over time

A force can be described as...?

a push or a pull

a 5 kg ball rolls at 6 m/s calculate its momentum

30 kg m/s

A 400 N force is applied to a bullet for .03 seconds. Calculate the impulse on the bullet

12 Ns

Friction

force caused by rubbing surfaces

normal

perpendicular to a surface

inertia

property of matter that resists motion

A force is applied for 1 second to a 6 kg object causing it to speed up by 2 m/s. calculate the force

12 N

30 m/s

C has a mass of 6 kg and is moving at 40 m/s towards D which is at rest. C hits D and comes to rest. Calculate the new velocity of D