1 / 8

-Thrown Down -Going Up and Coming Down

-Thrown Down -Going Up and Coming Down. Physics Mrs. Coyle. Thrown Down. A basketball is bounced straight down from a height of 1.2m with an initial velocity of 15m/s down. a)What is the final velocity of the ball? b)For how much time was the ball falling? Answer: a)-15.8m/s, b) 0.08s.

Download Presentation

-Thrown Down -Going Up and Coming Down

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. -Thrown Down -Going Up and Coming Down Physics Mrs. Coyle

  2. Thrown Down A basketball is bounced straight down from a height of 1.2m with an initial velocity of 15m/s down. a)What is the final velocity of the ball? b)For how much time was the ball falling? Answer: a)-15.8m/s, b) 0.08s

  3. Going Up • Object is thrown upwards with an initial velocity in the +y direction • Motion in y axis  constant acceleration • g=-10m/s2 • Symmetry

  4. Symmetry vup = - v down tup = t down Going Up and Coming Down

  5. Going Up Demonstration Link

  6. Example 1 A tennis ball is thrown up from the ground with an initial velocity of 25m/s. a)At what time will the ball reach the top and what was the total time of flight? b)What is the maximum height? c)With what velocity did the ball reach the ground? Answer: a) 2.55s, 5.1s, b) 31.9m, c) -25m/s

  7. Example 2 A rock is thrown straight up and reaches a maximum height of 20 m. a)What was the initial speed of the rock? b)What was the time it took for the rock to reach the top? Answer: a) 20m/s, b) 2s

  8. A ball is thrown straight up from a 100m tall cliff with an initial velocity of 3 m/s. What is the velocity with which the ball fell in the water? Answer: 44.4m/s Going Up and Coming Down

More Related