Question

From the window of a building, a ball is tossed from a height y₀ above the ground with an initial velocity of 9.10 m/s and angle of 23.0° below the horizontal. It strikes the ground 4.00 s later.

A. If the base of the building is taken to be the origin of the coordinates, with upward the positive y-direction, what are the initial coordinates of the ball? (Use the following as necessary: y₀. Assume SI units. Do not substitute numerical values; use variables only.)

Xi=______________?

yi=_______________?

B. With the positive x-direction chosen to be out the window, find the x- and y-components of the initial velocity.

Vix=________?

Viy=_________?

C. Find the equations for the x- and y-components of the position as functions of time. (Use the following as necessary: y₀ and t. Assume SI units.)

x=_________?

y=_________?

D. Find the height from which the ball was thrown.

___________m

Answer 1

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