Ablock is launched up a frictionless 40° slope with an initial speed v and reaches a maximum vertical height h. the same block is launched up a frictionless 20° slope with the same initial speed v. on this slope, the block reaches a maximum vertical height of
1. h
2. h/2
3. 2h
4. a height greater than h but less than 2h.
5. a height greater than hl2 but less than h.
Answers: 3
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