JoJo exerts a horizontal force of 276 N in attempting to push a freezer across a room, but the freezer does not move. what is the friction force that the floor exerts on the freezer?
clearly, the friction force exactly balances JoJo's efforts, or the refrigerator would move, right?
Fe - Fs = M*a,
276 - Fs = M*0,
276 - Fs = 0,
Fs = ___N. = Force of static friction.
To determine the friction force that the floor exerts on the freezer, we can use the fact that the freezer is not moving. When an object is not moving (or moving at a constant speed), it means that the net force acting on it is zero.
In this case, JoJo exerts a horizontal force of 276 N on the freezer, but it does not move. Therefore, the friction force must be equal in magnitude and opposite in direction to the force that JoJo applies.
So, the friction force that the floor exerts on the freezer is also 276 N.
To determine the friction force that the floor exerts on the freezer, we can use the concept of static friction. Static friction is the force that opposes the motion of an object at rest. It acts parallel to the surface in contact with the object.
In this case, we know that JoJo exerts a horizontal force of 276 N (let's call it F_applied) to push the freezer, but the freezer does not move. This means that the static friction force (F_friction) is equal in magnitude but opposite in direction to the applied force.
The equation that represents the static friction force is:
F_friction ≤ μ_s * N
Where μ_s is the coefficient of static friction and N is the normal force. The normal force is the perpendicular force exerted by a surface that supports the weight of an object.
In this scenario, since the freezer is not moving, we can assume that the static friction force (F_friction) is at its maximum value, which is equal to the applied force (F_applied) that JoJo exerts.
Thus, to find the friction force that the floor exerts on the freezer, we can conclude that:
F_friction = F_applied = 276 N
Therefore, the friction force that the floor exerts on the freezer is 276 N.