Question

An object starts from rest and uniformly acquires a velocity of 20.0 m/s in 5.0 minutes. For the next 10 minutes, the object moves with a constant speed. After 10 minutes moving at 20. m/s, the object then again accelerates and reaches a speed of 15 m/s in the opposite direction in 3.0 minutes' time. Calculate the acceleration during the first five minutes.

Answer 1

The acceleration during the first five minutes is 0.067 m/s².

Step-by-step explanation:

The acceleration during the first five minutes can be calculated using the equation:

acceleration = (change in velocity) / (time)

In this case, the object starts from rest and acquires a velocity of 20.0 m/s in 5.0 minutes. So, the change in velocity is 20.0 m/s and the time is 5.0 minutes. Converting the time to seconds, we have 5.0 minutes = 5.0 * 60 seconds = 300 seconds.

Therefore, the acceleration during the first five minutes is:

acceleration = 20.0 m/s / 300 s = 0.067 m/s²