A paperboy rode his bike at 3m/s. After being chased by a dog for 8 seconds, he was traveling 6m/s. What is his acceleration?
well v increased by 3 m/s in 8 seconds.
now, what is the definition of acceleration?
You would do the final velocity subtracted from the initial velocity, so 3 m/s - 6 m/s and you would get -3 m/s. Now you divide it from the time which is, 8 seconds and you would get -3 m/s divided by 8 seconds which will be approximately -0.375.
To find the acceleration, we need to use the formula:
acceleration = (final velocity - initial velocity) / time
Given:
Initial velocity (u) = 3 m/s
Final velocity (v) = 6 m/s
Time (t) = 8 seconds
Plugging the values into the formula, we get:
acceleration = (6 m/s - 3 m/s) / 8 s
Simplifying the equation, we have:
acceleration = 3 m/s / 8 s
Now, we can divide the values:
acceleration = 0.375 m/s²
Therefore, the acceleration of the paperboy is 0.375 m/s².
To find the acceleration, we need to use the formula:
Acceleration (a) = (final velocity - initial velocity) / time
Given:
Initial velocity (u) = 3 m/s
Final velocity (v) = 6 m/s
Time (t) = 8 seconds
Substituting the values in the formula:
Acceleration (a) = (6 m/s - 3 m/s) / 8 seconds
Simplifying:
Acceleration (a) = 3 m/s / 8 seconds
Now we can divide the values:
Acceleration (a) = 0.375 m/s²
Therefore, the paperboy's acceleration is 0.375 m/s².