Question

A particle travel 1st half distance with uniform speed of 40m/a and next half distance with uniform speed of 80m/s calculate average speed.​

Answer 1

Answer:

60m/s

Explanation:

(40+80)m/s divided by 2

120m/s divided by 2

60m/s

Answer 2

Answer:

160/3m/s=53.33m/s

Explanation:

Average speed=total distance/total time

Let total distance be x

Time taken to cover 1st half distance=(x/2)÷40

Time taken to cover 2nd half distance=(x/2)÷80

Total time taken =x/80+x/160=(3x/160)

Average speed=160/353.33m/s