1 answer

A ball is thrown from the top of a building with an initial velocity of 23.7...

Question:

A ball is thrown from the top of a building with an initial velocity of 23.7 m/s straight upward, at an initial height of 52.0 m above the ground. The ball just misses the edge of the roof on its way down, as shown in the figure.

(a) Determine the time needed for the ball to reach its maximum height.
s

(b) Determine the maximum height.
m

(c) Determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant.

Time     s
Velocity     m/s

(d) Determine the time needed for the ball to reach the ground.
s

(e) Determine the velocity and position of the ball at t = 5.18 s.

Velocity     m/s
Position     m

Answers

3-8 20 x9.8

.

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