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A car starts from rest and accelerates a...

A car starts from rest and accelerates at `5 m/s^2`. At t = 4s, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at t = 6s?

A

` 20 sqrt(2) m/s`, 0

B

` 20 sqrt(2) m/s, 10 m/s^2`

C

` 20 sqrt(2) m/s, 5 m/s^2`

D

`20 m/s , 0`

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