Question

an object is moving with a uniform velocity of 20 m/sec come to rest in 5sec calculate the retardation produced in the object​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:-

• initial velocity=u=20m/s
• Final velocity=v=0m/s
• Time=t=5s
• Retardation=a=?

We know that

$\boxed{\sf a=\dfrac{v-u}{t}}$

$\\ \sf\longmapsto Retardation=\dfrac{0-20}{5}$

$\\ \sf\longmapsto Retardation=\dfrac{-20}{5}$

$\\ \sf\longmapsto Retardation=-4m/s^2$