Question

pls answer these2 ques

Answer 1

Hey there,

5.ï

○Suppose distance from A to B to A =2s

●Time from A to B,t1=s/10

●Time from B to A ,t2=s/20

Averagespeed=Total distance/Total time


=2s/(s/10+s/20)

=2×10×20/(20+10)

=40/3 m/s.

4.ii

TIME =Distance/speed= 5pie/pie = 5 s.

Displacment =2(5)=10m

Velocity=10/5 m/s=2m/s.

Hope it helps