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astra-53 [7]
3 years ago
6

What distance is required for a train to stop if its initial velocity is 23 m/s and its

Physics
1 answer:
Varvara68 [4.7K]3 years ago
7 0

-- The train starts at 23 m/s and slows down by 0.25 m/s every second.

So it'll take (23/0.25) = 92 seconds to stop.

-- Its average speed during that time will be (1/2)(23+0) = 11.5 m/s

-- Moving at an average speed of 11.5 m/s for 92 sec, the train will cover

(11.5 m/s) x (92 sec)  =  <em>1,058 meters</em> .

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Explanation:

Given

Radius of flywheel is r=0.4\ mm

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