Other Physics Answers

 A car with a mass of 1000 kg is moving directly East at a rate of 10 m/s collides with a 1500 kg car moving directly North at 18 m/s. If this is a perfectly inelastic collision, what is the resulting momentum and direction of the final two car mass? What is the masses velocity?

A 50kg object is moving at 18.2 m/s when a 200 N force is applied in the opposite direction of it’s motion. If the object slows down to 12.6 m/s due to the force, how long was the force applied?

A 1300 kg car moving at 20 m/s and a 900 kg car moving at -15 m/s in precisely the opposite directions participate in a head on crash. If we consider this event to be perfectly inelastic collision, what is the speed and direction of the cars after impact?

The green ball with a mass of 1 kg traveling 10 m/s collides directly(elastically) with a stationary red ball with mass of 2 kg and causes it to move at a velocity of 6 m/s. What is the total momentum of the system and what is the resulting velocity of the green ball?

A red ball with a mass of 2 kg traveling at 3 m/s collides directly(elastically) with a stationary green ball with a mass of 1 kg and causes it to move at a velocity of 5 m/s. What is the total momentum of the system and what is the resulting velocity of the red ball?

What is the impulse for a force of 40 newtons being applied to an object for 5 seconds?

What is the momentum of a 5000 kg train car that is traveling at 15 m/s?

A 50 kg child slides down a 45° with a µ of -0.25 and length of 5 meters. What is the kinetic energy the child has at the bottom of the slide due to friction? What was the child’s gravitational potential energy at the top of the slide(Remember the slide is on an angle, the child’s height is not 5 meters)?

 A mother is pulling her son on a sled. She exerts a force of 150 N at an angle of 30°. If the total mass of the child and sled is 80 kg and the µ between the sled and the snow is -0.15, how much work is done if the sled travels 100 meters?

An object attached to the end of a vertical spring causes it to stretch 3.0 cm giving the spring 29 mJ of potential energy. What is the mass of the object?