Solution: Find the force required to start the block moving up the plane

A 250 lb. block is initially at rest on a flat surface that is inclined at 30°. If the coefficient of kinetic friction is 0.30 and the coefficient of static friction is 0.40, find the force required to start the block moving up the plane.

Find the force required to start the block moving up the plane

Problem Statement: EE Board October 1997

A 250 lb. block is initially at rest on a flat surface that is inclined at 30°. If the coefficient of kinetic friction is 0.30 and the coefficient of static friction is 0.40, find the force required to start the block moving up the plane.

  • A. 190 lb.
  • B. 212 lb.
  • C. 125 lb.
  • D. 75 lb.

Problem Answer:

The force required to start the block moving up the plane is 212 lb..

Solution:

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