Physics 11. The diagram below represents a car resting on a hill. e BV HORIZONTAL Which vector best represents the weight of the car? A) A B) В C) C D) D 12. A block is at rest on an inclined plane as shown in the diagram at the right. As angle 0 is increased, the component of the block's weight parallel to the plane BLOCK HORIZONTAL A) decreases C) remains the same B) increases 13. Which diagram represents the vector with the largest downward component? [Assume each vector has the same magnitude.] A) B) GROUND GROUND C) D) GROUND GROUND 14. A resultant force of 10. Newtons is made up of two component forces acting at right angles to each other. If the magnitude of one of the components is 6.0 Newtons, the magnitude of the other component must be A) 16 N B) 8.0 N C) 6.0 N D) 4 N

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!