GCSE Physics 2020-2022 OCR Gateway: EXAMPLE:
A Car from rest, Accelerates to 50 km/hr as Fast as Possible
-Predict its Acceleration in m/s

Question

EXAMPLE:
A Car from rest, Accelerates to 50 km/hr as Fast as Possible
-Predict its Acceleration in m/s

eric_galvao · Accepted Answer

- 50 km/hr = 50 km /hr / 3.6 = 13.88... m/s
-You have to Guess the Time it took for it to reach 13.88 m/s, so pick a Number that is Sensible - 2 Seconds in this Case
-So we use Acceleration = Change in Velocity / Time Taken
-Acceleration = 13.89 m/s / 2 = 7 m/s² [1 Sig Figure]

GCSE Physics 2020-2022 OCR Gateway

EXAMPLE: A Car from rest, Accelerates to 50 km/hr as Fast as Possible -Predict its Acceleration in m/s

- 50 km/hr = 50 km /hr / 3.6 = 13.88... m/s -You have to Guess the Time it took for it to reach 13.88 m/s, so pick a Number that is Sensible - 2 Seconds in this Case -So we use Acceleration = Change in Velocity / Time Taken -Acceleration = 13.89 m/s / 2 = 7 m/s² [1 Sig Figure]

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