68 Answered Questions for the topic Momentum

01/11/16

Answer question number nine please.

8.) A 1500-kg automobile, traveling at 5.0 m/s after braking, strikes a power pole and comes to a full stop in 0.1 s. Calculate the force exerted by the power pole and brakes required to stop the... more

01/11/16

Impulse = Change in Momentum

In a car crash, an air bag exerts -1000 N of force on a 46 kg passenger. The passenger comes to a rest in 0.15 sec. How fast was the passenger moving before the crash?   Show work please.

01/11/16

Average Force?

In a car crash, a 50 kg passenger moving at 15 m/s is stopped by an air bag in 0.10 sec. What is the average force the air bag exerts on the passenger?   Show work or explain concept using... more
Momentum Physics Velocity Mass

01/07/16

Momentum in a collision.

How is momentum conserved in a collision?   Explain using words, calculations, or both as well as physics terms.

12/17/15

Explain total momentum in physics.

Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction.   When is total momentum greatest?   The... more

12/17/15

Explain momentum before a collision.

Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction.   Which ball has more momentum before the... more

12/12/15

finding the average force of the Helicopter

An attack helicopter is equipped with a 20-mm cannon that fires 129 g shells in theforward direction with a muzzle speed of1030 m/s. The fully loaded helicopter hasa mass of 3170 kg. A burst of 223... more
Momentum Physics Velocity Mass

12/02/15

Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s.

Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s. Draw a diagram showing the carts before and after... more
Momentum Physics Collision

12/02/15

What is the momentum of two vehicles as they move off together after the collision?

A vehicle with a momentum of 6000 kg*m/s strikes a stationary vehicle. What is the momentum of two vehicles as they move off together after the collision? using physics terms please.
Momentum Physics

12/01/15

A2500kgCarSlowedDownUniformalyFromAnInitialVelocityOf20.0m/sToTheNorthByA6250NBrakingForceActingOppositeTheCar'sMotion.

What is the car's velocity after 2.50s? How far does the car move during 2.50s? 

11/02/15

A 45.2kg boulder falls off a mountain that is 255 m tall. What is the kinetic energy of the boulder when it falls off the cliff?

I know the answer might be 0J but I need help explaining how to get the answer
Momentum Physics

06/06/15

I have a question regarding direction of momentum

So a few homeworks ago I had this question:   A billiard player sends the cue ball toward a group of three balls that are initially at rest and in contact with one another. After the cue ball... more

A child is on a object that is spinning. How can he increase the system’s rotational momentum?

a) Move away from centerb) Move toward centerc) Move in opp. direction to motiond) none of the above   what's the answer???????????
Momentum

03/25/15

What is the momentum of a 6.00 kg bowling ball moving at 10.0 m/s down the alley

 I need to know the momentum of the bowling alley ... no specific unit just need the answer...and maybe the formula
Momentum

07/03/14

help with momentum

if you wanted to increase the momentum of an object how could you go about doing this?   a.  increase its mass    (I say yes to answer a) b.  excert a greater force on the object in the... more
Momentum Physics Light

04/07/14

How can light have momentum?

So, I have been watching a lot of videos on physics, and a few of them have eluded to the fact that light has momentum. For instance, minutephysics video "E=MC2" is incomplete states that the full... more
Momentum

01/28/14

whats the momentum

When you are traveling in your car at highway speed,the momentum of a bug is suddenly changed as it splattersonto your windshield. Compared with the change inmomentum of the bug, by how much does... more

10/10/13

i need help with a momemtnum problem on my homework

a 2kg blob of putty moving at 3 m/s slams into a 2 kg of putty at rest. what is the initial momentum of the two blobs? what must be the final momentum of the two blobs? Also, calculate the velocity... more

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