A toy car with a mass of 500g rolls along at 3m/s. A child drops a clay blob with a mass of 250g onto the car.  The clay sticks to the car and the conglomerate object continues to roll along.  With what speed is it moving after the clay sticks to the ca

A 56.0-kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. He would like to move toward his spaceship, but his jet pack is not functioning. He throws a 0.720-kg socket wrench with a velocity of 5.00 m/s in a direction away from the ship. After 0.500 s, he throws a 0.800-kg spanner in the same direction with a speed of 8.00 m/s. After another 9.90 s, he throws a mallet with a speed of 6.00 m/s in the same direction. The mallet has a mass of 1.20 kg. How fast is the astronaut moving after he throws the mallet?(assume all speeds are relative to the spaceship).

A 650.0-kg car makes a 90° turn. Its speed before the turn is 23.0 m/s and after the turn it is 27.6 m/s.   Calculate the magnitude of the change in the car's momentum.

A 10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through the air at 20 m/s when a 60 kg skydiver drops out by releasing his grip on the glider. What is the glider's speed just after the skydiver lets go?