State the law of conservation of momentum
In and isolated system the momentum will not change
Force is measured in this Unit
Newtons
A Newton is equal to this combination of units
Kg*m/s2
When 2 objects stick together after a collision, what type of collision is that called?
Inelastic Collision
List all 3 of Newton's laws
1. Inertia
2. F=m*a
3. Action/Reaction equal/opposite
Elastic Collision: m1=2kg v1i=8m/s v1f=0 m/s
m2=4kg v2i=0 m/s v2f = ?
4 m/s
What force due to gravity does a 60 kg person feel on Earth?
60*9.8= 588 N
What causes the Momentum to change?
A Net Force over time
A 2kg ball traveling at 8 m/s hits a 4kg ball at rest in an Inelastic collision. What is the velocity of the objects immediately after the collision?
0.375 m/s
What would the acceleration of a 12 kg object be if it experienced a net force of 4 N?
0.33 m/s2