A baseball is thrown downward from a 50-ft tower with an initial speed of 18 ft/s. Determine the speed at which it hits the ground and the time of travel.
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We will use the following formula to solve this question to figure out the speed at which it hits the ground.
(Where v_2 is final velocity, v_1 is initial velocity, a_c is constant acceleration, s_2 is initial displacement, and s_1 is final displacement)
From the question, we know the following values:
Let us substitute these values into our equation:
(Take the square root of both sides)
To figure out the time of travel, we will use the following equation.
(Where v_2 is final velocity, v_1 is initial velocity, a is constant acceleration and t is time)
Again, substituting the values we know gives us:
(Solve for t)