8. A diver is standing on a platform 25 feet above the pool. He jumps from the platform at an initial velocity of 10 ft/s.
a. Use the formula h(t) = -16t+ + vt + s where k is his height above the
water at time t seconds, v is the starting upward velocity, and s is his
starting point to write an equation to model the dive.
b. Find the diver's height after 2 seconds.