Momentum
A 100 kg man is running at 5.6 m/s. What is his momentum?
What is 560 kg*m/s
100 cm are equivalent to 1 m. How many cm are equivalent to 3 m?
If the radius of a circle increases what happens to the centripetal acceleration of the object traveling along the circular path?
The centripetal acceleration decreases.
This is conserved when two objects collide
What is momentum?
This means to conserve.
What is keep the same amount?
A steel ball whose mass is 2.0 kg is rolling at a rate of 2.8 m/s. What is its momentum?
What is 5.6 kg*m/s?
Forty-five cm are equivalent to how many m?
0.45 m
If a ball rolls at high speed out of a circular tube resting on a table, will the ball continue in circular motion once it leaves the tube? Why?
No, the centripetal force is no longer acting on the ball. Due to inertia, the ball will move in a straight line out of the tube.
In an elastic collision this is what happens.
What is objects bounce off each other
What is impulse force must increase?
How can the momentum of a car equal the momentum of a bus?
What is Fast moving car and slow moving bus?
One mole of water is equivalent to 18 grams of water. A glass of water has a mass of 200 g. How many moles of water is this?
11.1 moles
A car traveling at a constant speed is going around a circle with a radius of 70 meters. If it takes 120 seconds to travel around the circle one time, what is the car's average speed?
3.66 m/s
This is what happens when 2 marbles of equal size and velocity collide from opposite directions.
What is they bounce off each other?
Momentum is calculated using these.
What is mass and velocity?
A 40 kg. object has a momentum of 400 kg*m/s. This is its velocity.
What is 10 m/s
In an experiment, you find the mass of a cart to be 250 grams. What is the mass of the cart in kilograms?
0.25 kg
How does the speed of an object traveling in a circle relate to the radius of the circle? Assuming the time it takes for one revolution is the always the same.
speed is directly proportional to the radius of the circle. If the radius doubles, the speed doubles.
This is what happens in an inelastic collision.
What is 2 objects stick together?
This happens to momentum when the mass of the object is doubled
What is it is doubled?
A 1 kg roller skate is traveling down the road at 10 m/s and a 1000 kg truck is traveling at 0.01 m/s down the same road. This has the larger momentum.
What is neither, they are the same?
A mile is farther than a kilometer. Consider a fixed distance, like the diameter of the moon.
Would the number expressing this distance be larger in miles or in kilometers?
Kilometers
A girl is swinging on a swing has a centripetal acceleration of 6 m/s2. If the length of the chains on the swing are 3.0 meters long, what is the girl's tangential speed?
4.24 m/s
The amount of momentum a cart gains if the cart it crashed into lost 5 kg*m/s
This happens to momentum when the velocity of the object is half the original velocity.
What is the momentum is cut in half?