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Q. a 0.250 kg block on a vertical spring with a spring constant of 5000N/m is pushed downward, compressing the spring 0.100m. when released, the block leaves the spring and travels upward vertically. how high does it rise above the point of release.

Q. In coming to a stop, a car leaves skid marks 89 m long on the highway. Assuming a deceleration of 6.00 m/s2, estimate the speed of the car just before braking.

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