you have to push with a force of 200N to slide a refrigerator across a floor at constant velocity.What is the force of friction acting on the fridge?
constant velocity - no acceleration
net force is zero
friction and push cancel each other
To find the force of friction acting on the fridge, we need to use Newton's first law, which states that an object at constant velocity experiences a net force of zero.
In this case, the force you applied to push the fridge, 200N, is balanced by the force of friction acting in the opposite direction.
Therefore, the force of friction acting on the fridge is also 200N, but in the opposite direction.