Catalyst. Notebooks today ! You are trying to build a treehouse and you have a few tools to get the job done. For each question that follows, which would give you a greater torque? a. A 0.3 m wrench or a 0.5 m wrench b. Using the 0.3 m wrench at a 75 degree angle or a 90 degree angle
You are trying to build a treehouse and you have a few tools to get the job done. For each question that follows, which would give you a greater torque?
a. A 0.3 m wrench or a 0.5 m wrench
b. Using the 0.3 m wrench at a 75 degree angle or a 90 degree angle
c. Using the 0.5 m wrench with 200 N of force or 400 N of force
d. Using the 0.3 m wrench with 300 N of force or using the 0.5 m wrench with 250 N of force
In the game of football, when there is a linebacker (responsible for tackling the ball carrier) running at you, what are a few things that you care about regarding the linebacker?
MOMENTUM DEPENDS ON MASS AND VELOCITY
If a bicycle and a car travel at the same speed, which has more momentum?
If one cart moves faster than another identical one, which has more momentum?
Think of a situation in which a bicycle could have more momentum than a car.
What if it’s not so clear… Which object has more momentum?
Object 1: mass: 5.0 kg; velocity: 1 m/s
Object 2: mass 0.03 kg; velocity: 300 m/s
We need to be able to calculate momentum.
Write this equation!
A 35-kg child is running at 8 m/s. What is the child’s momentum?
The child’s 80-kg parent is running after him with the same momentum. What is the parent’s velocity?
1. A 2 kg baseball is thrown with a velocity of 20 m/s. What was its MOMENTUM?
2. Which has greater momentum, Car A, which is 300 kg and moving at 50 m/s, or Car B, which is 500 kg and moving at 28 m/s?
3. Two planes are flying away from each other. Which of the following is FALSE?
a. They could both have positive momentums
b. If one plane is twice as big but flying at the same velocity, it has twice the momentum.
c. If they are the same size and going at the same speed, the magnitude of their momentums is the same.