PH-394
Free fall
Physics · Secondary 3 · Hard · Free fall
A stone is thrown vertically upwards with an initial speed of 18 m/s. Take the acceleration of free fall as 10 m/s² downwards. What is the speed of the stone after 2.0 s?
- 2.0 m/s
- -2.0 m/s
- -38 m/s
- 38 m/s
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