A car is moving along a straight (OP). It moves from `O to P` in `18 seconds` amd retuns from `P to Q` in 6 seconds`, where `OP=360 m` and `OQ=240 m What are the car the average velcoty and average speed of the car in going (a) from `Oto P` and back to `Q` ?

Options

A. `10ms^(-1),20ms^(-1)`
B. `20ms^(1-),10ms^(-1)`
C. `10ms^(-1),10ms^(-1)`
D. `20ms^(-1),20ms^(-1)`

Answer

A

Explanation

`V_("avg")=("total displacement")/("total time")=(S_(1)+S_(2))/(t_(1)+t_(2))`