Theories, Concepts, and Principles
Calculating with Momentum
NO ROUNDING !!
NO ROUNDING !!
Analyze the Graph
Apply Conservation of Momentum
ROUND !!
ROUND !!
100
m*v
What is the formula for momentum ?
100
Mass = 1500 kg
Velocity = 25 m/s
Momentum = ______ ?
What is 37,500 N*s ?
100
The impulse provided between the 4th and 8th second = _________ ?
What is 60 N*s ?
100
A 2.500 kg block sliding on a frictionless surface with a velocity of 6.00 m/s approaches a stationary block of mass 6.5 kg. The blocks stick together after the collision. Their final velocity = ______ ?
What is 1.7 m/s ?
200
The total momentum of an isolated system remains constant if no external forces act on it.
What is the conservation of momentum ?
200
Momentum = 500 N*s
Mass = 50 kg
Velocity = ____ ?
What is 10 m/s ?
200
Mass = 12 kg
The impulse provided between the 4th and 5th second = _____ ?
What is zero impulse ?
200
Two cars, A and B, are initially connected and at rest. Car A has a mass of 1000.00 kg, and car B has a mass of 1500.0 kg. They separate due to internal forces between them. After the collision, car A moves to the left with a velocity of 5.00 m/s. The velocity of car B after the collision = _____ ?
What is 3.33 m/s ?
300
kg*m/s
What is the standard unit for momentum ?
Impulse
300
A golf ball with a mass of 0.045 kg traveling at a velocity of 60 m/s hits a person in the head, just outside their home. What momentum was the golf ball carrying just before impact?
What is 2.7 N*s ?
300
Mass = 0.5 kg
The impulse provided between the 5th and 8th second = _______ ?
What is - 4.5 N*s ?
300
A bullet with a mass of 0.082 kg moving with a muzzle velocity 250 m/s hits and embeds itself in a human initially at rest. If the human has a mass of 75 kg just before impact, what is the human's velocity after getting shot?
What is 0.273 m/s ?
400
Object A is more massive than object B.
Object A and B carry the same amount of momentum.
Object A's velocity is _______ [than/to] Object B's velocity?
What is less than ?
400
A football player with a mass of 80 kg is running at a velocity of 8 m/s. Their momentum = _____ ?
What is 640 N*s ?
400
The impulse experienced during the first 10 seconds of motion = _____ ?
What is 320 N*s ?
400
The mass of a rocket full of fuel is 4,500.00 kg. It sits at rest on a launchpad. It fires a thruster, expelling 150.5 kg of fuel in gas form at a velocity of 1,750 m/s to the right. The velocity of the rocket after thrust is complete = _____ ?
What is 60.6 m/s to the left ?
500
When an object experiences a change in momentum due to a force being applied onto it over a period of time.
What is impulse ?
500
A train with a mass of 2000 kg is traveling at a velocity of 30 m/s. The momentum of the train = ____ ?
What is 60,000 N*s ?
500
Mass = 1500 kg
The force exerted during the first 2 seconds of the collision = ?
What is 30,000 N ?
500
An astronaut and their equipment have a combined mass of 95.0 kg. The astronaut is stranded in space exactly 35 m away from their ship. They decide to throw a 7.500 kg torque wrench in a direction away from the ship. If they throw the wrench with a velocity of 5.500 m/s, their resulting velocity = _____ ?
What is 0.471 m/s toward the ship?
600
Why does an air bag decrease the amount of force a person experiences during a collision?
What is the impact time is increased, thereby decreasing the impact force ?
600
A bullet with a mass of 20 g has a momentum of 200 N*s. The bullet's velocity = ______ ?
What is 10,000 m/s ?
600
a(t) = 1.5t^2
Mass = 7.5 kg
The Impulse provided between t = 0.5 s and t = 3.0 s is = _______ ?
What is 100.78 N*s ?
600
Two hockey pucks collide on the ice. Puck A, with a mass of 0.20 kg, is initially moving to the right with a velocity of 4.0 m/s. Puck B, with a mass of 0.30 kg, is initially at rest. After the collision, puck A moves to the left with a velocity of 2.0 m/s. Determine the velocity of puck B after the collision.
What is 1.3 m/s ?