Question

17.
A body starts moving along X axis with constant speed 10m/s, at time t = 0. At t = 6, it suddenly
reverses its direction of velocity, but continues to move with same speed. Calculate the
distance travelled and its displacement at t = 9 sec.
a) 90,90
b) 90,30
c) 90,60
d) 90,- 30
​

Answer 1

answer is b.....beacuse total distance travelled would be 90m and if we calculate displacement then 60-30(as velocity is now in opposite direction ) =30m

hope it helps u ....

Answer 2

if you are still having doubts just revise the concept of distance and displacement and you will be good to go

hope it helps