Question

At which second does the motorcycle start to have positive acceleration?

1) 1
2) 2
3) 3
4) 4

Answer 1

The motorcycle starts to have positive acceleration at every second listed (1, 2, 3, and 4).

Step-by-step explanation:

The motorcycle will start to have positive acceleration when its velocity is increasing. In the given scenario, a motorcycle with a uniform acceleration of 4 m/s² and an initial velocity of 20 m/s is being described. To determine when the motorcycle starts to have positive acceleration, we need to analyze its motion. Since the acceleration is positive and constant, the motorcycle's velocity will continue to increase throughout the entire duration of the motion. Therefore, the motorcycle starts to have positive acceleration at every second listed (1, 2, 3, and 4).