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SVEN [57.7K]
1 year ago
6

A football is kicked vertically upward from a height of 2 feet with an initial speed of 50 feet per second. The formula h=2+50t-

16t² describes the ball's height above the ground, h, in
feet, t seconds after it was kicked. Use this formula to find the ball's height 2 seconds after it was kicked.
The ball's height, 2 seconds after it was kicked, was feet.
Mathematics
1 answer:
Oksanka [162]1 year ago
5 0

Answer: 38 feet.

Step-by-step explanation:

The equation of motion of a body thrown vertically upwards:

                                       \displaystyle\\\boxed {h=h_0+v_0t-\frac{gt^2}{2} \ \ \ \ \ (1)},

h_0=2 \ feet\ \ \ \  v_0=50\  feet\  per\  second.

Substitute in formula (1) the value t=2 c:

h=2+50*2-16*2^2\\h=2+100-16*2*2\\h=102-64\\h=38\ feet.

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