Science, asked by shresthaadrin500, 9 days ago

A car ia travelling with a speed of 72km/hr.if it comes to rest after5 second, find reterdation

Answers

Answered by tpmsomr4csamyukthaka

0

Answer:

nmm

Explanation:

Answered by nandinysahu040

0

Answer:

u = 72 km/hr = 20m/sec, t = 5s , v = 0 , r = ?

v = u + at

0 = 20 + 5a

-20 = -5a

a = 4

but retardation = -4

Explanation:

because retardation is negative acceleration

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