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Unformatted text preview: Version C: A ball is dropped straight down from a given height. If it starts at rest and takes 3 seconds to hit the floor, (a) how high was it when it was released and (b) how fast is it moving just before it hits the ground? (Let the gravitational acceleration be 9.8 m/s'.) q \\= l?\' L)k\=\- ?t\ =?t A: (a) a4.l m (b) 29.a mls Version D. A car accelerates in a straight line toward a wall with a constant acceleration of 9.8 m/s2. If it starts at rest and takes 3 seconds to hit the wall, (a) how far does it go before impact and O) how fast is it moving just before it hits the wall? .. I _V2-o-\ \x= *qT-) - * \ - t r k\ v = c \ A: (a) 44.r m (b) Ze.a mls " /...
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- Fall '08