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A block starting from rest at t = 0.0seconds slides down a frictionless incline. during the...

A block starting from rest at t = 0.0seconds slides down a frictionless incline. during the time interval between t = 0seconds and t = 1 seconds, the block travels 20 cm along the incline. During the time interval between t = 1 second and t = 2 seconds, the block travels how much CM??

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