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A 1,220-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 9,500-kg truck moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east. The velocity of the truck right after the collison is 20.90 m/s east.
a) how much mechanical energy is lost after the collision?
b) account for this loss in energy.
While traveling along a level highway at a speed of 27m/s you shift the vehicle into neutral and find it takes 45 second to slow down to 20 m/s mile per hours.
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After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 7.20 kg of ice and the temperature of the ground was 40.5°C, calculate the energy that is required to melt all the ice at 0°C. Th..
A 1.1 kg particle-like object moves in a plane with velocity components vx = 20 m/s and vy = 50 m/s, What is its angular momentum relative to the origin at this moment
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