Physics-
General
Easy
Question
A particle of mass 0.1 kg is subjected to a force which varies with distance as shown in fig. If it starts its journey from rest at 
, its velocity at 
is
- 0 m/s
The correct answer is:
Area between curve and displacement axis
= 
= 80 J
In this time body acquire kinetic energy = 
by the law of conservation of energy
Þ 
Þ v2 = 1600
Þ v = 40 m/s
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