Question

A coin is dropped from a height of 750 feet. The height, *s* (ft), at time *t* (sec), is given by s=−16t2+750. How long does it take for the coin to hit the ground?

Answer 1

As given

S=750

Given equation is S=-16t2+750

750=-2(16)t

As 750 is constant so neglecting it

750=-32t

T=750/32

T=23.4 sec