A ball is thrown from an initial height of 3 meters with an initial upward velocity of 15 m/s. The ball's height h (in meters) after & seconds is given by the following.
h = 3+ 15t-5t
Find all values of t for which the ball's height is 8 meters.
To find all values of t for which the ball's height is 8 meters, we set the equation h = 8 and solve for t.
h = 3 + 15t - 5t
8 = 3 + 15t - 5t
8 = 3 + 10t
5 = 10t
t = 0.5
So, the ball's height is 8 meters at t = 0.5 seconds.