If the static friction between wood and concrete is 0.62 determine the force required the to make a wooden block of mass 2kg start to slide.
The force required to make the wooden block start to slide is equal to the maximum static friction force, which can be calculated by multiplying the coefficient of static friction and the normal force.
Static friction force = coefficient of static friction x normal force
The normal force is equal to the weight of the wooden block.
Weight = mass x gravity
Weight = 2 kg x 9.81 m/s² = 19.62 N
Therefore, the normal force is 19.62 N.
Now we can calculate the maximum static friction force:
Static friction force = 0.62 x 19.62 N = 12.16 N
Therefore, a force of at least 12.16 N is required to make the wooden block start to slide on the concrete surface.