Kinematics
This is the acceleration at the very top point on the path of a projectile.
What is 10 m/s/s?
This is the Newton's 3rd law pair for the weight of an object on Earth.
What is the force the object pulling on the Earth?
This is the rotational version of mass.
What is moment of inertia?
Since momentum has both magnitude and direction it can be classified as this.
What is a vector?
This quantity is not conserved in an inelastic collision
what is kinetic energy
This is how long it will take a 5 kg object to hit the ground if dropped from rest at a height of 12.5 m. You can ignore air resistance.
What is 1.6 seconds?
The normal force on a 10 kg block on a horizontal surface that has a string pulling straight up on it with a tension of 48N
What is 52 newtons?
The best angle (relative to the lever arm) to maximize the torque produced by a force
What is 90 degrees
This is the name we give for the change in momentum.
What is impulse?
This quantity is found by calculating the area under a force versus time graph and is equal to the change in momentum
This is the value that can be found from the area under a velocity-time graph.
What is displacement?
This is the direction that kinetic friction acts on an object.
What is opposite of the motion?
This is the final velocity a 500 kg car that starts at rest will have after it is rear-ended by a 650 kg that is initially going 20 m/s. The cars lock together after they hit.
What is 11.3 m/s?
A frictionless roller coaster of mass M that starts at a height of 9H will be traveling this much faster than one that has a mass of 2M and that starts at a height of H when they both reach the bottom
What is three times faster
This is the type of acceleration that an object must have in order to be able to use the kinematics equations.
What is constant?
This is the direction of the tension in a string when you twirl a ball in a circle above your head.
What is toward the center?
This is what must be true for an object to be in rotational equilibrium.
What is net torque equals zero?
A 5 kg loaded rifle is initially held at rest and then fired. The 0.05 kg bullet leaves the barrel at 450 m/s. This is the final momentum of the bullet-gun system.
What is zero?
A mass oscillating on a spring will have a zero acceleration at this point
What is the equilibrium position?
A 0.5 kg ball is thrown horizontally with an initial velocity of 15 m/s from a balcony that is 20 above the ground. How far away from the building will the ball hit the ground?
What is 30 meters?
The gravitational force changes by this much if you increase the distance between two planets by 3 times.
What is 1/9?
Mr. Evans is standing on a rotating platform and is spinning at a rate of 2 rotations per second. If he is holding a 2 kg mass 1 m away from the center of his body, then the angular momentum of the mass is ...
What is 25.12
The point where an object or system acts as though all of its mass is at that point
What is the center of mass
A 1000 kg car is traveling over a hill traveling at 10 m/s. What is the normal force acting on the car as it passes over the top of the hill if the hill has a radius of 20 meters at the highest point?
What is 5,000 N