A particle travels half the distance with a velocity of 6 ms. The remaining half distance is covered with a velocity of 4 ms for half the time and with a velocity of 8 ms for the rest of the half time. What is the velocity of the particle averaged over the whole time of motion?

Options

A. 9 `ms^(-1)`
B. 6 `ms^(-1)`
C. 5.35 `ms^(-1)`
D. 5 `ms^(-1)`

Answer

b

Explanation

Here average vel. For second half is
`:.`Average vel. For the whole
`(6+6)(2)`=6 `ms^(-1)`