Final answer:
The applied force required to make the block just begin to slide can be calculated using the coefficient of friction and the normal force. The value of the applied force just as the block begins to slide is approximately 40 N to the left.
Step-by-step explanation:
The applied force required to make the block just begin to slide can be calculated using the equation:
F_friction = μk * F_normal
where F_friction is the frictional force, μk is the coefficient of friction, and F_normal is the normal force. In this case, the frictional force is equal to the force required to overcome static friction. Since the block is just beginning to slide, the frictional force is equal to the maximum static frictional force.
The maximum static frictional force is given by:
F_friction_max = μ_s * F_normal
where μ_s is the coefficient of static friction. Since the coefficient of static friction is not given, we cannot calculate the exact value of the applied force. However, we can determine the direction of the applied force based on the given information. The block is sliding to the left, so the applied force must be to the left.
Therefore, the value of the applied force just as the block begins to slide is approximately 40 N to the left.