W a and m s from PART 1. 2. On attached calculation sheets, use the experimental information from Procedure 1, and determine theoretically from Newton's First Law the value of W b that will make the block be just on the verge of sliding UP the plane. Determine experimentally the value of W b that will make the block be just on the verge of sliding up the plane. Record the experimental spread on W b . 4. Repeat Procedures 2 and 3 for the value of W b that will make the block be on the verge of sliding DOWN the plane.
Calculations Do the following calculations.
If a body is not accelerating then total force acting on it must be zero. Write the equations. You should have now 3 equations for each case. From equation 1 calculate tension in the rope. From equation 2 calculate Normal Force.