PHYS 1300 Lecture Notes - Lecture 9: Euclidean Vector, Biceps, Projectile Motion
2 Nov 2017
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Next lecture: newton"s 2nd law (section 5. 3) The rock lands just beyond the castles moat t a level that is 9. 5 m below the initial height. |v| = 18 m/s: therefore, the final velocity is 18 m/s 61 below the horizontal, tan(cid:2016) = vy vx tan(cid:2016) = 15. 8327 (cid:2016) = 61 . A force is a push or a pull that when applied to an object is capable of changing the velocity of that object i. e. its direction of motion or its speed. Examples include the forces of: friction always away from the direction of movement. Air resistance form of friction: gravity always pulling downward, tension, normal always upward and perpendicular to the object, electric and magnetic. Contact is not always required: gravity, wind. Represent an object being studied as a dot. The movers tie a rope to the piano, pull it up a ramp placed over the stairs. What forces are acting on the piano with.
