A particle moves with a non zero initial velocity v0 and retardation kv, where v is the velocity at any time t.
The particle will cover a total distance v0k
The particle comes to rest at t=1k
Particle continues to move for long time
at time 1α,v=v02
A
The particle comes to rest at t=1k
B
The particle will cover a total distance v0k
C
Particle continues to move for long time
D
at time 1α,v=v02
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Solution
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u=v0, retardation a=kv and v is the velocity at time t. using v=u−at, we will get v=v0−kvt⇒t=v0kv−1k if v=0,t=∞. So the particle will be moved for a long time.
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