Definitions
The rate at which an object changes its position over time.
What is velocity?
Variable: t
What is time?
The term used to describe a force applied over a time interval that causes a change in the momentum of an object or system.
What is impulse?
The momentum of a 2.0 kg cart moves to the right at 3.0 m/s.
What is 6 kg*m/s?
The net force acting on a 65 kg object accelerating at a rate of 15 m/s2.
What is 975 N?
A push or pull on an object or system.
What is force?
Units: m/s
What is velocity/speed?
The impulse acting on an object that is subjected to a 250 N net force for a time period of 3 s.
What is 750 N*s?
The resulting change in momentum when the speed of a car increases by a factor of 3.
What is an increase by a factor of 3?
The gravitational potential energy of a 80 kg skydiver that is 250 m above the ground.
What is 200,000 J?
An object's total quantity of motion, defined as the product of it's mass and velocity.
What is momentum?
Variable: p
What is momentum?
The impulse acting on an object that starts from rest and increases its momentum to 35 kg*m/s.
What is 35 N*s?
The final velocity of a 0.5 kg object that is initially at rest and collides with a 0.25 kg object initially moving at 8 m/s, if the 0.25 kg object moves backwards at -2.0 m/s after the collision.
What is 5 m/s?
The resulting change in kinetic energy if the speed of a car is increased by a factor of 4.
What is an increase by a factor of 16?
A quantitative property of a system that is associated with the motion of particles and the relative position of particles.
What is energy?
Units: J
What is energy/work?
The average force acting on a 0.16 kg hockey puck that slows from 12 m/s to 8 m/s due to friction over 0.5 s.
What is 1.28 N?
The final velocity of a 1.5 kg cart and a 3.0 kg cart that collide and stick together if the 3.0 kg cart is initially at rest and the 1.5 kg cart has an initial velocity of 4.0 m/s.
What is 1.33 m/s?
The horizontal acceleration of a 10 kg object that is acted upon by a 50 N force at an angle 60 degrees from the horizontal direction if the force of friction acting on the object is 15 N.
What is 1 m/s2?
When a net average force acts on an object during a time interval, the impulse of this force is equal to the change in momentum of the object.
What is the impulse-momentum theorem?
Variable: J
What is impulse?
The magnitude of impulse delivered to a 0.20 kg ball that hits a wall with a speed of 6 m/s and bounces back at 4.0 m/s.
What is 2.0 N*s?
A 4.0 kg cart initially at rest explodes into two pieces. A 1.5 kg fragment moves left at 5 m/s. This is the final momentum of the remaining fragment.
What is 7.5 kg*m/s to the right?
The starting height of a 0.25 kg block that starts from rest and slides down a frictionless ramp and reaches a final velocity of 25 m/s at the bottom of the ramp.
What is 31.25 m?