You are coasting on your 10-kg bicycle at 15 m/s and a 5.0-g bug splatters on your helmet. The bug was initially moving at 2.0 m/s in the same direction as you. If your mass is 60 kg, (a) what is the initial momentum of you plus your bicycle? (b) What is the initial momentum of the bug? (c) What is your change in velocity due to the collision with the bug? (d) What would the change in velocity have been if the bug were traveling in the opposite direction?

A bullet is fired into a block of wood sitting on a block of ice. The bullet has an initial velocity of 500m/s and a mass of 0.005kg. The wooden block has a mass of 1.2kg and is initially at rest. The bullet remains embedded in the block of wood afterward. a) Assuming that the momentum is conserved, find the velocity of the block of wood and bullet after the collision. b) What is the magnitude of the impulse that acts on the block of wood in this process? c) Does the change in momentum of the bullet equal that of the block of wood?

A 51 kg boy on roller skates moves with a speed of 3 m/s. He runs into a 42 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/s

A 40.0-g bullet moving at a 250.0 m/s passes through a 2.40 cm thick sheet of foam plastic and emerges with a speed of 90.0 m/s. Assuming that the speed change takes place uniformly, calculate the average force that impeded the bullet's motion through the plastic. (Hint: You can apply the impulse-momentum theorem to solve the problem.)

A 500 g object moving with an initial speed of 1.6 m/s to the left, experiences a force varying with time as shown below.  A) The initial momentum of the object is ____. (in kg•m/s) B) What is the total impulse exerted on it? (in N•s) C) The final momentum of the object is ____. (in N•s) D) What is the final velocity of the object? (in m/s) Also the chart says the time is in (ms) im not sure if that conversion was throwing off my numbers

A 49 kg boy on roller skates moves with a speed of 4 m/s. He runs into a 41 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/s

A 480 kg car moving initially at 20.0 m/s east hits head-on a 520 kg car moving initially at 10.0 m/s west. After the collision, the cars are stuck together. If linear momentum is conserved, what is the velocity of the cars together after the collision?

a) What is the total momentum of this two-astroid system? (Give answer in component form). Don’t forget to include appropriate units in your answers!

A student is driving a 1200 kg car at 42.0 m/s. He is tail-gating ("drafting") behind a 2500 kg truck that is going 40.0 m/s in the same direction as the car. (DON'T EVER DO THIS! IT IS EXTREMELY DANGEROUS AND ILLEGAL) The car collides with the truck and the two vehicles are stuck together. How fast are they moving after the collision?

A 5 kg object, object A, moving at 6 m/s to the right collides head on with a 20 kg object, object B, that is a rest. The 5 kg object ends up with a speed of 2 m/s in the opposite direction. (a) What is the velocity of the second object after the collision? (b) How much kinetic energy is transferred to object B during the collision? (c) How much kinetic energy is lost?