Question

an object is moving with initial speed of 5m/s brought to rest in 10 second. find the retarding acceleration​

Answer 1

Answer:

the answer is 180 m

Explanation:

this method should tell at 10 std

Answer 2

☀️ Given that :

          Initial velocity of object is 5m/s

          It is brought to rest

          In time of 10s

Need to find : Retarding acceleration

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❍ To calculate the retarding acceleration we have to substitute the values in the first equation of motion ::

⚝ v = u + at

Where,

• v denotes final velocity
• u denotes initial velocity
• a denotes acceleration
• t denotes time taken

T H E R E F O R E,

=> 0 = 5 + [ a × 10 ]  

=> 0 = 5 + 10a  

=> 10a = 0 - 5  

=> 10a = -5  

=> a = -5/10  

=> a = -0.5 m/s²

[ Note : Final velocity is taken zero because the body was brought to rest ]

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• Henceforth, value of retarding acceleration is -0.5 m/s²