If you use a horizontal force of 30.0 N to slide a 12.0 kg wooden crate across a floor at a constant velocity, calculate the acceleration.
when you say constant velocity, that means zero acceleration.
To calculate the acceleration of the wooden crate, we need to use Newton's second law of motion, which states that the force acting on an object is equal to its mass multiplied by its acceleration (F = m × a).
In this case, the force applied to the wooden crate is the horizontal force of 30.0 N, and the mass of the crate is 12.0 kg. Since the crate is moving at a constant velocity, it means there is no net force acting on it (the applied force is balanced by the force of friction). Therefore, the net force is zero.
Since the net force is zero, we can set up the equation as follows:
0 = m × a
Solve the equation for acceleration:
a = 0 / m
Substituting the values, we get:
a = 0 / 12.0 kg
a = 0 m/s²
So, the acceleration of the wooden crate is 0 m/s².