1. A ball is thrown horizontally from a high window at 6 m/s and reaches the ground after 2 s. Calculate:
a) the horizontal distance travelled
b) the vertical speed at impact.
2. A stone thrown horizontally from a cliff lands 24 m out from the cliff after 3 s. Find:
a. the horizontal speed of the stone
b. the vertical speed at impact.
3. A ball is projected horizontally at 15 m/s from the top of a vertical cliff. It reaches the ground 5 s later.
a. Calculate the horizontal distance it travels in 5seconds
b. What was its vertical speed just before it hit the ground?
Answer: 1. a)12 m b)19.6 m/s
2. a)8 m/s b)29.4 m/s
3. a)75 m b)48m/s
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