Question

4. A particle moving along straight line covers total
distance S. In the first distance it moves with
velocity 5 m/s and in the second
distance it
moves with velocity 4 m/s and in the last
distance for half time it moves with velocity 3 m/s
and reamaining half time it moves with velocity
7 m/s. What is the average speed of the particle for
the entire journey?
(1) 4.61 m/s
(2) 2.57 m/s
(3) 5.89 m/s
(4) 7.24 m/s​

Answer 1

Answer:

nsbsjsnsjejejjebejejehebejf eheuebehjdhejejehe ejehekekeheieheh rjrurbrbrkwhejbfjrh dhejbekebdjdhfhe fnfhekebdhhrbfiebfirbb ejrhirb

Explanation:

gdgeiebekekebd f ejejekbf