1
A mover pushes a heavy box at a constant velocity with a force of 500 N. What force does the box exert on the mover?
500N
With what forcewill a car hit a tree if the car has a massof 3,000 kgand it is acceleratingat a rate of 2m/s2?
6000N
If the mass of a cart doubles but the force stays the same, what happens to the cart’s acceleration?
it will be half as much
If the force acting on a cart doubles, what will happen to the cart’s acceleration?
it will be two times as much
which cart will accelerate the least, a full cart or a cart that is empty?
full cart
A book weighs 6.0 N. If the acceleration of gravityis 9.8 m/s2, what is the massof the book in kilograms?
0.61kg
a 50N force is acting upon a 10kg ball, what accelerationwill the ball have?
5m/s^2
A bowling ball collides with a bowling pin, what happens to the momentumof the ball?
decreases
Compare the momentum of the child with the momentum of the bike if the child weighs 20kg and the bike weighs 5.5kg and they are both traveling at a velocity of 4.5m/s^2.
the child will have a greater momentum
How does the momentum of Car 1, which is traveling at 40 mph and has a mass of 1000kg, compare to the momentum of Car 2 which is traveling at 20 mph and has a mass of 1000kg?
car 1 has twice as much momentum then car 2
According to Newton’s first law of motion, what will happen to a moving object that is NOTacted on by an unbalanced force?
it will remain in motion
In the diagram above, the action force is the foot hitting the soccer ball, what is the reaction force?
the ball hitting the foot
What happens to the total momentum when any two objects collide?
the total momentum does not change
When a moving bumper car collides with a bumper car at rest, what would occur?
Momentum is transferred to the car at rest
An ice skater with a mass of 65 kg has a momentum of 130 kg • m/s West. What is her velocity?
2 m/s west
According to the Law of Conservation of Momentum, what happens to the combined momentum of two objects after they have collided?
remains the same
When a train increases its velocity what happens to its momentum?
increases
A car with a mass of 1400 kg moves along the ice with a constant velocity of 18.0 m/s South. What is the car’s momentum?
25,200 kg∙m/s South
What is the massof a motorcycle with velocity if 40 m/s East and a momentum of 8000 kg∙m/s East?
200kg
what is the formula to find momentum?
P=M x V
What is the unit for momentum?
kg m/s^2
Draw and explain the momentum triangle
momentum, mass, acceleration
what is the the main unit for mass?
kg
what is the unit for force?
newtons
what is the formula for velocity?
V=P/M