17. A car travelling at 36km/hr speeds upto 72 km/hr in 5 seconds. What is its acceleration in SI unit?

Answers (1)

Given the initial speed u = 36 km/h = 10 m/s

The final speed = 72 km/h = 20 m/s

acceleration a= (v-u)/t = (20-10) / 5= 2 ms2

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