physics momentum & impulse
What is the velocity of the bullet block system after the bullet embeds itself in the block?
(M/m+M)V
Cart A and Cart B are initially at rest on a horizontal, frictionless surface being pushed apart when a compressed spring attached to one of the carts is released. Cart A has a mass of 3 kilograms and Cart B has a mass of 5 kilograms. If the speed of cart A is .33 meter per second after the spring is released what is the approximate speed of Cart B after the spring is released?
.20 m/s
A .500 kilogram cart traveling to the right on a horizontal frictionless surface at 2.20 meters per second collides head on with a .800 kilogram cart moving to the left at 1.10 meters per second. What is the magnitude of the total momentum of the two cart system after the collision?
.22 kgdm/s
When a 1.0 kilogram cart moving with a speed of .50 meter per second on a horizontal surface collides with a second 1.0 kilogram cart initially at rest, the carts lock together? What is the speed of the combined carts after the collision?
.25 m/s
The diagram below shows an 8.0 kilogram cart moving to the right at 4.0 meters per second about to make a head on collision with a 4.0 kilogram cart moving to the left at 6.0 meters per second. After the collision, the 4.0 kilogram cart moves to the right at 3.0 meters per second. What is the velocity of the 8.0 kilogram cart after the collison?
.50 m/s left
A blue lab cart is traveling west on a track when it collides with and sticks to a red lab cart traveling east. The magnitude of the momentum of the blue cart before the collision is 2.0 kilogramdmeters per second, and the magnitude of the momentum of the red before the collision is 3.0 kilogramdmeters per second. The magnitude of the total momentum of the two carts after the collision is?
1.0 kgdm/s
The magnitude of the momentum of an object is 64 kilogramdmeter per second. If the velocity of the object is doubled, the magnitude of the momentum of the object will be
128 kgdm/s
What is the speed of 1.0 x 10^3 kilogram car that has a momentum of 2.0 x 10^4 kilogramdmeters per second east?
2.0 x 10^1 m/s
A 3.1 kilogram gun initially at rest is free to move. When a .015 kilogram bullet leaves the gun with a speed of 500 meters per second, what is the speed of the gun?
2.4 m/s
A .050 kilogram bullet is fired from 4.0 kilogram rifle that is initially at rest. If the bullet leaves the rifle with momentum having a magnitude of 20 kilogramdmeters per second, what will be the magnitude of the momentum of the rifle's recoil?
20 kgdm/s
If the 1.0 kilogram cart moves to the left with a speed of 6.0 meters per second, then the 2.0 kilogram cart moves to the right with a speed of
3.0 m/s
A .0600 kilogram ball traveling at 60 meters per second hits a concrete wall. What speed must a .0100 kilogram bullet have in order to hit the wall with the same magnitude of momentum as the ball?
360 m/s
Two forces are applied to a block on a frictionless, horizontal surface. F1 is 12 N and F2 is WN. If the magnitude of the block's acceleration is 2 meters per second squared, what is the mass of the block?
5 kg
A child walks 5 meters north, then 4 meters east, and finally 2 meters south. What is the magnitude of the resultant displacement?
5.0 m
A 5.00 kilogram block slides along a horizontal, frictionless surface at 10.0 meters per second for 4.00 seconds. What is the magnitude of the block's momentum?
50 kgdm/s
The diagram below shows a 4.0 kilogram cart moving to the right and a 6.0 kilogram cart moving to the left on a horizontal frictionless surface. When the two carts collide they lock together. The magnitude of the total momentum of the two cart system after the collision is
6.0 kgdm/s
A cannonball with a mass of 1.0 kilogram is fired horizontally from a 500 kilogram cannon, initially at rest, on a horizontal, frictionless surface. The cannonball is acted on by an average force of 8.0 x 10^3 newtons for 1.0 x 10^-1 second. What is the magnitude of the change in momentum of the cannonball during firing?
8.0 X 10^2 kgdm/s
Which person has the greatest inertia?
A 110 kg wrestler resting on a mat
As angle T is increased, the horizontal acceleration of the mass
Decreases
If the magnitude of F1 is greater than the magnitude of F2, then the box is accelerating in the direction of
F1
A compressed spring is between two carts initially at rest on a horizontal frictionless surface. Cart A has a mass of 2 kilograms and Cart B has a mass of 1 kilogram. A string holds the carts together. After the string is cut and the two cars move apart, the magnitude of which quantity is the same for both carts?
Momentum
Two cars having different weights are traveling on a level surface at different constant velocities. Within the same time interval, greater force will always be required to stop the car that has the greater
Momentum
A woman with horizontal velocity V1 jumps off a dock into a stationary boat. After landing in the boat, the woman and the boat move with velocity V2. Compared to velocity V1, velocity V2 has
Smaller magnitude and same direction
Which graph best represents the relationship between the acceleration of an object falling freely near the surface of Earth and the time it falls?
Straight line graph because it remains constant
A 1.0 kilogram laboratory cart moving with a velocity of .50 meter per second due east collides with and sticks to a similar cart initially at rest. After the collision, the two carts move off together with a velocity of .25 meter per second due east. The total momentum of the frictionless system is
The same before and after the collision
Which situation will produce the greatest change of momentum for a 1.0 kilogram cart?
applying a net force of 5N for 2s
which of the following is a vector quantity
displacement
Cart A has a mass of 2 kilograms and a speed of 3 meters per second. Cart B has a mass of 3 kilograms and a speed of 2meters per second. Compared to the inertia and magnitude of momentum of Cart A, Cart B has
greater inertia and the same magnitude of momentum
Which expression represents the speed, V1 of the masses after the collision?
mAv/mA + mB
As a car is driven south in a straight line with decreasing speed, the acceleration of the car must be directed....
northward
