Balanced: A book sliding across a table at a constant speed, A ball sitting on a shelf motionless, A car traveling at a constant speed of 15 m/s, A baseball reaching the highest point in a toss, Unbalanced : A can rolling down a ramp increasing in speed, A swing moving back and forth, A bird decreasing speed to land on a branch, A baseball player pitching the ball,

S4: Balanced and Unbalanced

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