Physics, asked by Massacre, 1 year ago

A train is travelling at 90km/h. Breaks are applied so as to produce a uniform acceleration of - 0.5 m/s sq. Find how far will the train go before it is brought to rest.
v  = u + at

Answers

Answered by aaravshrivastwa
7
By the application of Third equation of Motion:-

v²-u²= 2aS
Convert 90km/h into m/s

(90x5/18)m/s= 25m/s

v²-u²=2aS

v= Final velocity

u= initial velocity

a= acceleration

S= distance

(25²-0²)m/s= (2x0.5)m/s² x S

(625 -0)m/s= 1 x S

625/1 = S

or, S = 625/1

or, S = 625

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aaravshrivastwa: Yeha
rkaoor: Your answer is wrong
legendking: dont be so happy i was just joking!!!
rkaoor: See it carefully
rkaoor: Answer is 625 metres
aaravshrivastwa: What is the answer
rkaoor: See, you have multiplied 2 two times on right side
rkaoor: Haha
rkaoor: Now you mouth is closed .
aaravshrivastwa: Okay I will re-edit
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