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3 years ago

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A train is travelling at speed of 20m/s. Brakes are applied so as to produce a uniform acceleration of -0.5m/s2. find how far th

e train will go before it is brought to rest.

1 answer:

aivan3 [116]3 years ago

7 0

Use v^2 - u^2 = 2as

Here, u = 20 m/s , a = -0.5 m/s^2 and v = 0

- 400 = -s ======> s = 400 m

Hope it helps, please mark me as brainliest and give me a good rating. Thank You!

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$\hat u_2 = \sqrt{2gh}$

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$u(0)= \dfrac{ m_2 \times \sqrt{2gh}}{(m_1+m_2)}$

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