Question

a a moving train is brought to rest within 20 seconds by applying brakes find the initial velocity if the retardation due to application of brakes is 1.5m per second square​

Answer 1

Answer:

Given:

Given:Final velocity v = 0

Given:Final velocity v = 0Time taken t = 20 s

Given:Final velocity v = 0Time taken t = 20 sAcceleration a = -2 m/s2

Given:Final velocity v = 0Time taken t = 20 sAcceleration a = -2 m/s2From the equation v = u + at, we have

Given:Final velocity v = 0Time taken t = 20 sAcceleration a = -2 m/s2From the equation v = u + at, we haveu = v - at

Given:Final velocity v = 0Time taken t = 20 sAcceleration a = -2 m/s2From the equation v = u + at, we haveu = v - at→ u = 0 - (-2) × 20

Given:Final velocity v = 0Time taken t = 20 sAcceleration a = -2 m/s2From the equation v = u + at, we haveu = v - at→ u = 0 - (-2) × 20→ u = 40 m/s2

Step-by-step explanation:

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Answer 2

Answer:

Hello.

Step-by-step explanation:

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