Question

a scooter acquires a velocity of 36 km/h in 10 seconds just after the start. Calculate the acceleration of the scooter.

Answer 1

Solution :

Given :  

u (initial velocity) = 0 (rest) , v (final velocity) = 36 km/ hr = 36 × (1000/3600)

v = 36× 5/18 = 10 m/s. , t = 10s

From first equation of motion , v = u + at

10 = 0 + a ×10

10 = 10a

a = 10/10

a = 1 m/s²

acceleration of the scooter = 1 m/s²

Hence, the acceleration of the scooter is 1 m/s².

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Answer 2

According to the question, Initial velocity of the scooter = 0 ( starts from rest )                     Final velocity of the scooter = 36 km/h = 36 X 5/ 18 = 10 m/s                                          Time taken to reach the final velocity = 10 seconds                                                       Acceleration =  v - u / t       a = 10 - 0 / 10       a = 10 / 10              a = 1 m/s²