Question

A car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds calculate the acceleration

Answer 1

Answer:

1 m/s^2

Explanation:

Initial Velocity u = 18km/h = 18km/h * 5/18 = 5m/s

Final Velocity v  = 36km/h = 36km/h * 5/18 = 10m/s

Acceleration = v-u /t

                     = (10m/s - 5m/s) / 5

                     = 5m/s / 5

                     = 1m/s^2

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Answer 2

Initial Velocity u = 18km/h = 18km/h * 5/18 = 5m/s

Final Velocity v  = 36km/h = 36km/h * 5/18 = 10m/s

• Acceleration = v-u /t

                    = (10m/s - 5m/s) / 5

                    = 5m/s / 5

                    = 1m/s^2