Question

Find the average speed of an object when object travels for first half time with speed v1 and for receiving half time with speed v2

Answer 1

Answer:

(v1+v2)/2 unit

Explanation:

let total time taken by object= t

=> distance covered by object with speed v1

= v1 ×t/2

=> distance covered by object with speed v2

= v2 × t/2

=> average speed = total distance / total time

=( v1×t/2+v2×t/2) / t

= t ( v1+v2) / 2t

= (v1+v2) /2 unit

the unit of speed is not given it may m/s,

km/h, etc.

hope this helps you