Unicorn
Last Activity: 3 Years ago
V=6-2t implies velocity will be a zero at t=3 sec. And hence maximum displacement
Also,
V=ds/dot
S=(6-2t)dt Integrate
S=6t-t^2
At t=0,6 s=0
At t=3 sec ,,s=9metre and at t=4sec. S=8m
It will go 9metre and then 1 meter back as at t=4 s=8 which is less than at t=3
Hence displacement =8m and distance =9+1=10 meter
Distance - displacement =10-8=2 meter
Hope it helps
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