Determine the vertical positions of the ball for every interval of 1s until 10.0 seconds.

Question

Shelley threw a tennis ball upward near the edge of a cliff that is about 100 meters above sea level. Suppose the ball was thrown with a speed of 30.1 m/s. Determine the vertical positions of the ball for every interval of 1s until 10.0 seconds.

Given
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Formula
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Answer

Answer 1

Given:

H_o = 100m

V_o = 30.1 m/s

Formula:

H(t) = H_o + V_ot + 1/2at²

Plugging in time t values into the above equation, we find the consecutive positions of the ball.

Say t = 1

H(1) = 100 + (30.1 x 1) - (0.5 x 9.8 x 1²)

H(1) = 125.2 m

Let's try t = 10s

H(10) = 100 + (30.1 x 10) - (0.5 x 9.8 x 10²)

H(10) = 401 - 490 = -89m (Negative means below the starting point)

You can try others Elle.