$A$ person in an elevator accelerating upwards with an acceleration of $2\,m s^{-2}$ tosses a coin vertically upwards with a speed of $20\,m s^{-1}$. After how much time will the coin fall back into his hand? $(g = 10\,m s^{-2})$
- A$\frac{5}{3}\,s$
- B$\frac{3}{10}\,s$
- C$\frac{10}{3}\,s$
- D$\frac{3}{5}\,s$
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This is because:
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This is because:
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