| Momentum | Impulse | Impulse and Change in Momentum | Explosions | Collisions |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
What letter is used to represent momentum?
What letter is used to represent momentum?
p
Momentum is the product of what two quantities?
Momentum is the product of what two quantities?
mass and velocity
The direction of momentum is important because momentum is what type of quantity?
The direction of momentum is important because momentum is what type of quantity?
vector
Calculate the momentum of a car that has a mass of 900kg moving at 20 m/s.
Calculate the momentum of a car that has a mass of 900kg moving at 20 m/s.
18,000 kg m/s
A a 2 kg toy truck has a momentum of 4 kg m/s. What is the velocity of the truck?
A a 2 kg toy truck has a momentum of 4 kg m/s. What is the velocity of the truck?
2 m/s
What letter represents impulse?
What letter represents impulse?
J
Impulse is the product of what two qunatities?
Impulse is the product of what two qunatities?
Net force and time
Calculate the impulse on a nail that experiences a net force of 50N for 0.1 sec.
Calculate the impulse on a nail that experiences a net force of 50N for 0.1 sec.
5 N-s
Show that the unit for impulse is equivalent to the unit for momentum.
Show that the unit for impulse is equivalent to the unit for momentum.
N-s = kg/m/s/s * s = kg m/s (seconds cancel)
A boxer's face experiences an impulse of 500 N-s. If the time of impact is 0.2 seconds. What is the force?
A boxer's face experiences an impulse of 500 N-s. If the time of impact is 0.2 seconds. What is the force?
1000 N
The impulse applied to an object is equal to what quantity?
The impulse applied to an object is equal to what quantity?
Change in momentum.
A 50 kg wheel barrow is brought to rest in 3s. What is the impulse applied to the wheel barrow?
A 50 kg wheel barrow is brought to rest in 3s. What is the impulse applied to the wheel barrow?
150 N-s
Two 0.2 kg eggs are thrown at 15 m/s. One egg smashes into the wall and breaks, the second egg hits a sheet and survives. Which egg experiences the greatest impulse?
Two 0.2 kg eggs are thrown at 15 m/s. One egg smashes into the wall and breaks, the second egg hits a sheet and survives. Which egg experiences the greatest impulse?
Same
Two 0.2 kg eggs are thrown at 15 m/s. What is the impulse applied to the egg to bring it to a stop?
Two 0.2 kg eggs are thrown at 15 m/s. What is the impulse applied to the egg to bring it to a stop?
3 N-s
Trippling the stopping time and tripling the mass of a car has what effect on the required net force?
Trippling the stopping time and tripling the mass of a car has what effect on the required net force?
None
What quantity is conserved during an explosion?
What quantity is conserved during an explosion?
Momentum
During an explosion. One 20 kg piece of a bomb flies to the left and a 10 kg piece flies to the right. The 10 kg piece feels a 100N force. What is the force on the 20 kg piece?
During an explosion. One 20 kg piece of a bomb flies to the left and a 10 kg piece flies to the right. The 10 kg piece feels a 100N force. What is the force on the 20 kg piece?
100 N
A 100 kg and 80 kg ice skater at rest push away from each other. What is the total momentum after the push?
A 100 kg and 80 kg ice skater at rest push away from each other. What is the total momentum after the push?
0 kg m/s
A 100 kg and 80 kg ice skater at rest push away from each other. The momentum of the 80 kg skater is 160 kg m/s after the push. What is the momentum of the 100 kg ice skater?
A 100 kg and 80 kg ice skater at rest push away from each other. The momentum of the 80 kg skater is 160 kg m/s after the push. What is the momentum of the 100 kg ice skater?
-160 kg m/s
A 100 kg and 80 kg ice skater at rest push away from each other. The speed of the 80 kg ice skater is 3 m/s after the push. What is the speed of the 100 kg ice skater?
A 100 kg and 80 kg ice skater at rest push away from each other. The speed of the 80 kg ice skater is 3 m/s after the push. What is the speed of the 100 kg ice skater?
2.4 m/s
What law states: Momentum before a collision is equal to momentum after a collision.
What law states: Momentum before a collision is equal to momentum after a collision.
Law of Conservation of Momentum
A truck collides into a mosquito. Which object experience a greater change in momentum?
A truck collides into a mosquito. Which object experience a greater change in momentum?
Same
A 6 kg ball moving at 2 m/s collides and sticks to a stationary 2 kg block of clay. What is the total momentum of the system after the collision?
A 6 kg ball moving at 2 m/s collides and sticks to a stationary 2 kg block of clay. What is the total momentum of the system after the collision?
12 kg m/s
A 6 kg ball moving at 2 m/s collides and sticks to a stationary 2 kg block of clay. What is the velocity of the ball after the collision?
A 6 kg ball moving at 2 m/s collides and sticks to a stationary 2 kg block of clay. What is the velocity of the ball after the collision?
1.5 m/s
A 1 kg moving at 2 m/s crashes into a 2 kg cart moving in the opposite direction at 4 m/s. They collide and stick. What is the final velcoity of the carts?
A 1 kg moving at 2 m/s crashes into a 2 kg cart moving in the opposite direction at 4 m/s. They collide and stick. What is the final velcoity of the carts?
- 2m /s
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