During a storm, a car traveling on a level horizontal road comes upon a bridge that has washed out. the driver must get to the other side, so he decides to try leap- ing the river with his car. the side of the road the car is on is 21.3 m above the river, while the opposite side is only 1.8 m above the river. the river itself is a raging torrent 48.0 m wide. (a) how fast should the car be traveling at the time it leaves the road in order just to clear the river and land safely on the opposite side? (b) what is the speed of the car just before it lands on the other side?
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Physics, 22.06.2019 16:30
3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?
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Physics, 22.06.2019 21:20
Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s
Answers: 3
During a storm, a car traveling on a level horizontal road comes upon a bridge that has washed out....
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