Question

After spinning out on a banana peel, Mario had a velocity of 0. If the cart accelerates at a rate of 2.5 m/s2, how many seconds passed before his velocity was 15 m/s?

Options:
1. 3 seconds
2. 4 seconds
3. 5 seconds
4. 6 seconds

Answer 1

The time it takes for Mario's velocity to reach 15 m/s is 6 seconds.

Step-by-step explanation:

To find the time it takes for Mario's velocity to reach 15 m/s, we can use the equation:

final velocity = initial velocity + (acceleration * time)

Given that his initial velocity is 0 m/s, his final velocity is 15 m/s, and the acceleration is 2.5 m/s2, we can rearrange the equation to solve for time:

time = (final velocity - initial velocity) / acceleration

Plugging in the values, we get:

time = (15 m/s - 0 m/s) / 2.5 m/s2 = 6 seconds

Therefore, 6 seconds passed before Mario's velocity reached 15 m/s.