Physics, asked by KILlerkkkk, 11 months ago

heya adarsh answer this also plzzzzz a car moving with a speed of 50 km/hr, can be stopped by brakes after at least 6m...If the same car is moving at a speed of 100 km /hr, the minimum stopping distance is ????​

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Answered by ITzBrainlyKingTSK
0

Answer:

24 m Mark as brainliest

Explanation:

speed of car, u = 50km/h = 50 × 5/18 = 125/9 m/s

car can be stopped by brakes after at least 6m.

so, stopping distance of car, S = 6m

we know formula of stopping distance = u²/2a, where u is initial speed of car and a is retardation acts on car.

now, 6 = (125/9)²/2a

a = (125/9)²/12 …..(1)

speed of car , U = 100km/h = 100 × 5/18

= 250/9 m/s

so, stopping distance, S' = (250/9)²/2a

= (250/9)²/2{(125/9)²/12}

= 6 × 4 = 24m

stopping distance of 2nd car is 24m

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