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

Respuesta :

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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