Thursday, February 11, 2010

How fast should the car be traveling just as it leaves the cliff in order clear river and land safely.?

A 10,000N car comes to a bridge during a storm and finds the bridge washed out. The 650-N driver must get to the other side, so he decides to try leaping it with his car. The side the car is on is 35.6 m above the river, while the opposite side is a mere 6.38 m above the river. The river itself is a raging torrent 52.8 m wide.How fast should the car be traveling just as it leaves the cliff in order clear river and land safely.?
The weight of the car and driver is of no importance. The car will free fall for 2.445 seconds, to clear the gap the car will need to have a forward speed of at least 22 meters per second.

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