Projectile+Motion

=__Solutions for Book Problems (p. 64-65, 1-6, 1-6)__=

__Page 64 Problems__

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__Page 65 Problems__

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VIDEO: Advice from Students Who Got an A on Test

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Test Review Questions
1) A swimmer attemps to swim a straight line at 2 m/s from one side of the river to the other but is pushed off-course by a 5 m/s current. What angle and velocity does the swimmer actually move at?

2) If the river is 50 meters wide, how long does it take the swimmer to reach the other side and how far downstream has the current pushed him?

3) If Peter kicks a soccer ball directly into the air with an initial velocity of 10 m/s and an initial height of 0.5 meters, how high will the ball go?

4) What's the velocity of the ball when it hits the ground?

5) A marble rolls off a 1.1 meter high table and hits the ground 6 meters away from the edge. How fast was the marble rolling when it left the table?

6) What's the angle of impact when the marble hits the ground?

7) Due to air resistance, the terminal velocity of a skydiver (belly down) is 54 m/s. How long after jumping out of the airplane does a skydiver reach terminal velocity?

8) A cannon fires a cannon ball from a 350 meter cliff at an angle of 54 degrees with an initial velocity of 60 m/s. Where does the cannon ball land?

9) Prove mathematically that kicking a soccer ball at complimentary angles with the same velocity will give equal ranges.

__Answers__