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[|Test Review Ch 4.4-5.7.doc]Ch 4.6-5.7 Test review problems

Information for Test on chs 4.4-5.6. Review multiple choice questions on [|www.aw.com/walker] from chs 4 and 5. Problems to be able to do: -__Projectile motion__ when an object is shot from a height (ie cliff, table top, roof, etc). You will be given angle of shot and initial velocity (resultant). and height off the ground. Steps to solve: 1) break initial velocity into x and y velocities using trig. 2) determine final velocity in y direction remembering the d in y direction is below the origin (therefore negative) and the final velocity in the y direction is also negative because it is in the opposite direction from the orginal y velocity. (You can avoid this step if you use the quadraidic equation - go right to step 3) 3) calulate t. Time is the same for both the x and y components. 4) use time to solve for range remembering the velocity in the x direction is CONSTANT and follows the equation v = d/t. (no acceleration, no Big 5) -__Newton's second law__ - F=ma. You will be given mass and some other values (vf, vi, d, or t) to solve for a. -__Forces acting on a slope__ - Remember to shift your origin so that it is parallel with the slope.