13. A ball is thrown down from a tower. Suppose a ball is thrown downward at a speed of 3.0 m/s, instead of being droppe

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13 A Ball Is Thrown Down From A Tower Suppose A Ball Is Thrown Downward At A Speed Of 3 0 M S Instead Of Being Droppe 1 (47.73 KiB) Viewed 43 times

13. A ball is thrown down from a tower. Suppose a ball is thrown downward at a speed of 3.0 m/s, instead of being dropped. What are the position and velocity at 1.0 and 2.0 seconds? a) Sketch the path of the ball and arrows to represent velocity b) Identify the known quantities: Vyo = (watch the sign), Yo = (simple) c) Which equation will give you position? d) Plug in numbers to get position ya = e) Which equation will give you velocity? f) Plug in numbers to get velocity. V m (note sign!), y2 = _m m/s (note sign!), V2 = m/s 14. A ball is thrown upward into the air with an initial velocity of +15,0 m/s. A) How high does it go? B) How long is it in the air before it comes back to the hand? C) At what time does it pass the 8.0 meter height? a) Sketch the ball in flight and include velocity vectors. A) b) Write the known quantities for A). c) What is the unknown quantity for A)? d) What ifquation for A)? e) Plug In numbers. y = m B) a) Consider the flight time up only.to b) What equation will give top? c) Solve for tup d) Plug in numbers for known quantities to get up e) Double tu to get total time in air. T = 2 = 5. c) a) What are the known quantities? b) What is the unknown quantity? c) What equation is to be used? d) Plug known quantities into equation and rearrange into quadratic form. 0