a train is running with a speed of 60 km/h. The driver puts an emergency brake having effect of 40cm/s^2 retardation. Find out the time when train will stop and velocity after 20 sec?
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Answer:
it's a very good question of physics
Explanation:
use the formula of v square minus u square is equals to 2as.
also use v equals u + at
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1
Answer:
please thanks my answer
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