A 0.2 kg toy car rolls down a ramp with a height of 0.9 m. …
A 0.2 kg toy car rolls down a ramp with a height of 0.9 m. At the bottom of the ramp, it collides with another car. Use conservation of energy and momentum to find the speeds before and after the collision. a. First, find the speed of the car at the bottom of the ramp, before the collision. m/s At the bottom of the ramp, it hits a stationary car with a mass of 0.4kg. The two cars have Velcro bumpers and stick together. b. At what speed do the two cars move after the collision? m/s
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