A body moving along straight line covers a distance in three equal parts with speed 2m/s, 3 m/s, 4m/s, then its avg speed will be
Answers
Answered by
2
Answer:
Please refer the below attachment !
Attachments:
Answered by
5
Answer:
avg speed = 36/13 m/s
Explanation:
let total distance = 3x
so,
t1 = x / 2
t2 = x / 3
t3 = x / 4
total time taken = x (1/2 + 1/3 + 1/4)
= x ( 6 + 4 + 3 )/ 12 = 13x/12
average speed = total distance / total time
= 3x / (13x/12) = 3x × 12 / 13x = 36/13 m/s
Similar questions