Question

A partical moves in20secand velocity 3me per sec and thenmoves with velocity 4me per sec for another 20secand finally moves with velicity 5m per sec for next 20sec whatis the average velocityof the partical

Answer 1

Answer:

Explanation:

Answer is 4m/s

20 \times 3 + 4 \times 20 + 20 \times 5 = 240 \\ avg. \: velocity = 240 \div 60 = 4m \: per \: sec