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A block of mass 4kg is dropped from a height of 2 meters on Earth. If that block is taken to a different planet, where the acceleration due to gravity is 1/4 as strong as it is on Earth, how high should the block be dropped so that it hits the ground with the same final velocity as on Earth? (Hint: you do not need to use gravitational force for this)
5 years ago

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henry2,
V^2 = Vo^2 + 2g*h = 0 + 19.6*2 = 39.2
V = 6.3 m/s.

V^2 = 0 + 2*2.45h = 39.2
h = 8 m.
5 years ago

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