Question
Physics Question on Motion in a straight line
A car starts from rest and accelerates at 5 m/s2 . At t=4 s, 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=6 s? (Take g=10 m/s2)
A
20√2 m/s, 10 m/s2
B
20 m/s, 5 m/s2
C
20 m/s, 0
D
20√2 m/s, 0
Answer
20√2 m/s, 10 m/s2
Explanation
Solution
The correct answer is option (A) : 20√2 m/s, 10 m/s2