Question

a car covers every one fifth of its distance with velocities 2m/sec,4m/sec,6m/sec,8m/sec And 10m/sec respectively its average speed is

Answer 1

Answer:

6 m/sec

Explanation:

average speed=total distance travelled/total time taken

so the car covers 2m in 1st sec,4m in 2nd sec,6m in 3rd sec,8 m in 4th sec and 10 m in 5th sec.so the average speed of the car

=2+4+6+8+10 m/5sec

=30/5=6m/sec