Question

A body moves from point P to point Q with a speed of 6ms-1 along a straight line then from Q to P with a speed of 4ms-!. What is its average speed over the entire trip?
A. 4ms-1
B. 4.8 ms -1
C. 5 ms-1
D. 5.5 ms -1
explain please ​

Answer 1

Answer:

Average Velocity=

Total time taken

Total Displacement

.

In this case, total displacement is equal to zero

Hence Average velocity =0