A block of wood of 5.0 kg is on the horizontal plank of wood and is pulled through a string. The maximum force on the string before the block starts to move is 6.4 N.
i) Determine the coefficient of friction among the two wood surfaces. If the plank is elevated to an angle of 15.0 degrees
ii) Determine the normal force.
iii) Determine the component of the weight of the block which is parallel to the plank.
iv) Determine the maximum force on the string before the block starts to move up the elevated plank?