A 91 kg object has a velocity whose magnitude is 45 m/s and whose direction is 264°. What is the direction of this object's momentum (in degrees)?

A comet is traveling through space with a speed of 3.10 ✕ 104 m/s when it collides with an asteroid that was at rest. The comet and the asteroid stick together during the collision process. The mass of the comet is 1.05 ✕ 1014 kg, and the mass of the asteroid is 6.50 ✕ 1020 kg. (a) What is the magnitude of the momentum of the system's center of mass before the collision? kg · m/s(b) What is the magnitude of the momentum of the system's center of mass after the collision? kg · m/s

A woman of mass m = 63 kg runs at a velocity vi = 1.53 m/s before jumping on a skateboard that is initially at rest. After jumping on the board the woman has a velocity vf = 1.42 m/s.b. What is the mass of the skateboard in kilograms? mb =c. The woman soon loses his balance and falls backwards off the board at a velocity of 1.0 m/s. Assuming momentum is conserved in this process, what is the skateboard's new velocity in meters per second? [Note: this may not be a very good assumption, as there can be significant friction in the ball bearings of the skateboard]

A rubber ball with a mass of 0.110 kg is dropped from rest. From what height (in m) was the ball dropped, if the magnitude of the ball's momentum is 0.800 kg · m/s just before it lands on the ground?