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A stone is dropped from the top of a tower. Its velocity after it has fallen 20 m is (Take g=10 m/s2) |
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(a) |
- 10 m/s |
(b) |
10 m/s |
(c) |
- 20 m/s |
(d) |
20 m/s |
|
A stone is dropped from the top of a tower. Its velocity after it has fallen 20 m is (Take g=10 m/s2) |
|||||||
|
(a) |
- 10 m/s |
(b) |
10 m/s |
(c) |
- 20 m/s |
(d) |
20 m/s |