A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of v0 = 19.5 m/s.The cliff is h = 71.0 m above a flat, horizontal beach as shown in the figure.
(a) What are the coordinates of the initial position of the stone?
| x0 | = | m | |
| y0 | = | m |
(b) What are the components of the initial velocity?
| v0x | = | m/s |
| v0y | = | m/s |
(c) Write the equations for the x- and y-components of the velocity of the stone with time. (Use the following as necessary: t. Let the variable t be measured in seconds. Do not include units in your answer.)
| vx | = |
|
| vy | = |
|
(d) Write the equations for the position of the stone with time, using the coordinates in the figure. (Use the following as necessary: t. Let the variable t be measured in seconds. Do not state units in your answer.)
| x | = |
|
| y | = |
|
(e) How long after being released does the stone strike the beach below the cliff?
s
(f) With what speed and angle of impact does the stone land?
|
vf
|
= | m/s | |
| θ | = | = ° below the horizontal |
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