judt9306 judt9306
  • 06-11-2017
  • Mathematics
contestada

A ball is dropped from a bridge which is 160 feet above a river. how long will it take the ball

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jorel1380
jorel1380 jorel1380
  • 09-11-2017
h(t)=-16t²+160
0=-16t²+160
16t²=160
t²=10
t=√10 or 3.16 seconds
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