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1.
A particle starts from rest at 
and undergoes an acceleration a in 
with time 
in seconds which is as shown
Which one of the following plot represents velocity
in 
versus time in seconds
and undergoes an acceleration a in with time in seconds which is as shownWhich one of the following plot represents velocity
in versus time in seconds
2.
Which of the following speed-time graphs exist in the nature?
3.
If a body loses half of its velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?