Question

it can accelerate from 0 to 80 km per hour in 3 seconds. Assuming the acceleration is constant, find its value

Answer 1

Here, the initial velocity is 0 km/h, the final velocity is 80 km/h, and the time is 3 seconds.

Converting the velocities to meters per second:

Initial velocity = 0 km/h = 0 m/s
Final velocity = 80 km/h = (80 * 1000) / 3600 = 22.22 m/s

Plugging the values into the formula:

acceleration = (22.22 m/s - 0 m/s) / 3 s
acceleration ≈ 7.41 m/s²

Therefore, the acceleration of the object is approximately 7.41 m/s².