# L2-1 Work Done by Constant Force unfinished.pdf - L2­1 Work...

• ProfessorSeaUrchinMaster128
• 3

This preview shows page 1 - 3 out of 3 pages.

L2­1 Work Done by Constant Force1L2­1WORK DONE BY ACONSTANT FORCEin physics, work is defined as the energy that a forcegives to an object when the force moves the objectwork depends on the component of the force in thedirection of the motionwork is given by the following equationW = F∆dcosθwhere W = work (J),F = magnitude of force (N),∆d = magnitude of displacement,θ = angle between the force and displacementwork is a scalarquantity
L2­1 Work Done by Constant Force2A pool cue stick strikes a ball with a constant force of 0.73 N,causing the ball to move 0.65 m in the direction of the force.The ball moves 0.080 m while the cue stick is in contact withit. Calculate the work done on the ball by the cue stick.eg.positive work occurs when the object moves in the direction of the applied forcenegative work occurs when the object moves in a direction opposite to the appliedforce (ie. 90° < θ < 180°)zero work can occur in 3 cases
End of preview. Want to read all 3 pages?