A coin, thrown upward at time t=0 from an office in the Empire State Building, has height in feet above the ground t seconds later given by

Question

h(t)=-16t^2+64t+960=-16(t-10)(t+6) at what time does the coin hit the ground?

Answer 1

Using the factored form of the function, it is at the ground (zero) at 10 seconds.