Recent content by savaphysics

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    Temperature rise after collision

    There is no KE lost right? Since they collided and there is no external forces.
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    Temperature rise after collision

    Homework Statement Determine the fractional decrease in total kinetic energy of each set of asteroids when they collide. If the average specific heat of the material composing the asteroids is assumed to be that of ice (2.05 kJ/kg·˚C), by how much does the temperature of the asteroids rise...
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    Net impulse and what objects exerts force

    thanks that really helped...
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    Net impulse and what objects exerts force

    Homework Statement You are riding in a car that crashes into a solid wall. The car comes to a complete stop without bouncing back. The car has a mass of 1500 kg and has a speed of 30 m/s before the crash. (this is about 65 mi/hr). What is the net impulse that acts on the car to bring it to...
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    What is the initial momentum of the car and rider in a collision?

    Homework Statement You are riding in a car that crashes into a solid wall. The car comes to a complete stop without bouncing back. The car has a mass of 1500 kg and has a speed of 30 m/s before the crash. What is the car’s initial momentum? What is your initial momentum? (Recall that the...