Calculate the momentum of a car that has a mass of 1250 kg and a velocity of 13•0 m/s.

A toy snowmobile has a mass of 21.0 kg and velocity of 91.0 m/s directed at 10.0 degrees N of E. The component of the snowmobile's momentum in the North (y) direciton is what? (answer in kg*m/s.)

A bowling ball in motion has a momentum with magnitude p. If the speed of the 3 ball is multiplied by a factor of and the mass of the ball is multiplied by a factor of 3 the magnitude of the ball's new momentum will be 4 O 2p 1

Show that the kinetic energy of a particle of mass m is related to the magnitude of the momentum p of that particle by KE = p2 /2 m.(Note: This expression is invalid for particles traveling at speeds near that of light.)

I drive a Nissan Leaf to work. With the e-pedal on, the motor recovers energy through braking very aggressively. I need about 7 KW-hour to come to school if I use mostly the freeways. That’s about 5 KW-hour if I take mostly local streets. From the energy perspective, can you offer an explanation to explain this difference?

An object has a kinetic energy of 310 J and a momentum of magnitude 28.1 kg · m/s. (a) Find the speed of the object.(b) Find the mass of the object.

Momentum = mass (Kg) times velocity (m/s). Why does a train longer to stop than a car?

During a car collision, the knee, thighbone, and hip can sustain a force no greater than 4000 NN. Forces that exceed this amount could cause dislocations or fractures. Assume that in a collision a knee stops when it hits the car's dashboard. Also assume that the mass of the body parts stopped by the knee is about 20% of the total body mass. The person with a mass of 90 kgkg is initially traveling at 18 m/sm/s (40 mi/hmi/h).  What minimum stopping time interval in needed to avoid injury to the knee?  What is the minimum stopping distance?

A guy running drops from a tower to the ground.  The height of the tower is 8 m.  (a) How fast is the person going when he hits the ground (assuming no air resistance)?  (b)  If the person's mass is 65 kg, what is his momentum when he hits the ground? (c)  If he lands and bends his knees, he comes to rest in 0.2 sec.  What force is being exerted on his legs to stop him?

If a rainstorm drops 4 cm of rain over an area of 12 km? in the period of 2 hours, what is the momentum (in kg · m/s) of the rain that falls in nine seconds? Assume the terminal velocity of a raindrop is 10 m/s. (Enter the magnitude. The density of water is 1,000 kg/m3.) kg · m/s