Physics, asked by sharmasks44, 11 months ago

a body is moving at a speed of 72 km per hour brakes are applied so as to produce a uniform acceleration of -0.5 metre per second square .find how far the body will go before it is brought to rest????
answer please it's urgent answer........​

Answers

Answered by Amanwadhwa20
1

Answer:

u = 72km {h}^{? - 1}  \\  = 72 \times  \frac{5}{18} \\  = 20m {s}^{ - 1}

a =  - 0.5m {s }^{- 1}

v = 0m {s}^{ - 1}

 {v}^{2}  -  {u}^{2}  = 2as

 {0}^{2}  -  {20}^{2}  = 2 \times  - 0.5 \times s

s =  \frac{ - 400}{2 \times  - 0.5}

s = 400m

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