James drops a marble. It accelerates downward at a rate of mc005-1.jpg. After 3.00 s, how fast is the marble moving downward?

idk help me

To determine how fast the marble is moving downward after 3.00 seconds, we can use the formula for acceleration:

acceleration (a) = change in velocity / change in time

In this case, the acceleration is given as -9.80 m/s^2 (as it is moving downward). The initial velocity is usually assumed to be zero, as mentioned in the problem statement when James drops the marble.

We can rearrange the formula to solve for the change in velocity:

change in velocity = acceleration * change in time

Plugging in the values we have:

change in velocity = -9.80 m/s^2 * 3.00 s

Solving this equation:

change in velocity = -29.4 m/s

Since the marble is moving downward, the velocity is negative. Therefore, the marble is moving downward at a speed of 29.4 m/s after 3.00 seconds.