With horizontal distance, initial velocity and angles problem?
17. recall that the equation for the horizontal distance h in feet of a projectile with initial velocity v0 and initial angle theta is given by h=v0^2/16 sin theta cos theta.

a. assume the initial velocity is 60 feet/second . what initial angle will you need to ensure that the horizontal distance will be exactly 100 feet?

b. assume the initial velocity is 60 feet/second. what is the maximum horizontal distance possible and at what angle does this occur?

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s