time taken by a train to slow down from 80 kilometre per hour to 20 kilometre per hour with a uniform acceleration of 2 metre per second square is
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time taken by a train to slow down from 80 kilometre per hour to 20 kilometre per hour with a uniform acceleration of 2 metre per second square is 30 sec
use formula
- V = u + at
where ,
u is initial velocity
v is the final velocity
a is acceleration
t is the time period
information
- first law of motion states that states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless a external force is applied.
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