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 ? ( take g=10 ms^(-2))

A person in an elevator accelerating upwards with an acceleration of 2

1.	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 ? ( take g=10 ms^(-2))
Answer» `1.67 s` `2S` `3.33 s` `5S` SOLUTION :`3.33 s`