Question

a car speed increases from 40km/hr to 60km/hr in 30minutes. calculate the acceleration of car​

Answer 1

Answer:

Given : initial velocity (u) = 40 km/h, final velocity (v) = 60 km/h and time (t) = 5 sec = 5/3600 hr = 1/720 hr. Therefore, Acceleration (a) = (v-u) / t = (60-40) km/h / (1/720) hr = (20×720) km/h^2 = 14400 km/h^2. Answer : The acceleration of the car is 14400 km/h^

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Answer 2

Answer:

Given : initial velocity (u) = 40 km/h, final velocity (v) = 60 km/h and time (t) = 5 sec = 5/3600 hr = 1/720 hr. Therefore, Acceleration (a) = (v-u) / t = (60-40) km/h / (1/720) hr = (20×720) km/h^2 = 14400 km/h^2. Answer : The acceleration of the car is 14400 km/h^