A 76.0 kilogram boulder is sliding horizontally at the top of a 20- meter-high vertical cliff over the surface of a lake. The top of a dam's vertical face is 100 meters from the cliff's base, with the dam's top level with the surface of the lake's water. A level plain is 25 meters below the dam's crest. (a) What must be the lowest speed of the rock as it exits the cliff in order for it to reach the plain without colliding with the dam? (a) How far does the rock reach the plain from the dam's foot?
A 76.0 kilogram boulder is sliding horizontally at the top of a 20- meter-high vertical cliff over the surface of a lake. The top of a dam's vertical face is 100 meters from the cliff's base, with the dam's top level with the surface of the lake's water. A level plain is 25 meters below the dam's crest. (a) What must be the lowest speed of the rock as it exits the cliff in order for it to reach the plain without colliding with the dam? (a) How far does the rock reach the plain from the dam's foot?
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A 76.0 kilogram boulder is sliding horizontally at the top of a 20-meter-high vertical cliff over the surface of a lake. The top of a dam's vertical face is 100 meters from the cliff's base, with the dam's top level with the surface of the lake's water. A level plain is 25 meters below the dam's crest. (a) What must be the lowest speed of the rock as it exits the cliff in order for it to reach the plain without colliding with the dam? (a) How far does the rock reach the plain from the dam's foot?
Transcribed Image Text:A 76.0 kilogram boulder is sliding horizontally at the top of a 20-
meter-high vertical cliff over the surface of a lake. The top of a dam's
vertical face is 100 meters from the cliff's base, with the dam's top
level with the surface of the lake's water. A level plain is 25 meters
below the dam's crest. (a) What must be the lowest speed of the rock
as it exits the cliff in order for it to reach the plain without colliding
with the dam? (a) How far does the rock reach the plain from the
dam's foot?
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