A car starts from rest and reaches a speed of 8.4 m/s in 5.9 seconds. What is the acceleration?
acceleration is the rate of change in velocity, or (m/s)/s. So,
(8.4m/s)/(5.9s) = 8.4/5.9 m/s^2
To find the acceleration, we can use the formula:
acceleration = (final velocity - initial velocity) / time
Given:
Initial velocity (u) = 0 m/s (car starts from rest)
Final velocity (v) = 8.4 m/s
Time (t) = 5.9 seconds
Substituting the values into the formula:
acceleration = (8.4 m/s - 0 m/s) / 5.9 seconds
Simplifying:
acceleration = 8.4 m/s / 5.9 seconds
Using a calculator:
acceleration ≈ 1.42 m/s²
Therefore, the acceleration of the car is approximately 1.42 m/s².
To find the acceleration, we can use the formula:
acceleration = (final velocity - initial velocity) / time
Given:
Initial velocity (u) = 0 m/s (car starts from rest)
Final velocity (v) = 8.4 m/s
Time (t) = 5.9 seconds
Plugging these values into the formula, we get:
acceleration = (8.4 m/s - 0 m/s) / 5.9 seconds
Simplifying further:
acceleration = 8.4 m/s / 5.9 seconds
Using a calculator or by manual calculation, we can find:
acceleration ≈ 1.42 m/s²
Therefore, the acceleration of the car is approximately 1.42 m/s².