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Projectile Motion - Ball On Target/in Cup Activity Purpose: To calculate where to place the target/cup so the ball will land there! Theory You will
Projectile Motion - Ball On Target/in Cup Activity Purpose: To calculate where to place the target/cup so the ball will land there! Theory You will use table to launch a ball The set-up is as follows. (An aluminum pie plate or paper horizontally. You will use a ramp to give bulls-eye can be substituted for the cup.) the ball an initial velocity. Start the ball at the same place on the ramp each time so it will have the same velocity at the ramp bottom of the ramp. As there are "no" forces acting horizontally on the ball while it rolls across the flat part of the path of the table, the ball will have a constant projectile velocity there. (There is some friction, which you have reduced by using a rolling object.) You can use this section of the find initial motion to determine the initial velocity velocity here of the ball when it rolls off the edge of height cup the table. In addition, you can measure 70 cm the height of the table, so you can use that to find the time it takes the ball to fall. Once you know both the initial horizontal velocity, and the time it takes the ball to fall, you can find the range. range PART I - Tabletop (horizontal distance across table should be close to 1.0 m) Take three videos of the ball rolling Horizontal tabletop distance (measured): across the table - make sure to clearly indicate the distance in the video so you 1 m are able to measure the time accurately. You can either add a timer to your video Horizontal tabletop time (measured): later with Screencastify of have a timer visible in your video on a laptop or 2 s (trial 1) phone. 2s (trial 2) 2s (trial 3) 2s (average time) Horizontal velocity (calculated): XPart II - Y-direction (to find find At) ay Ady = At = Part II - X-direction (to find find Adx) Use Vx from Part I and the result you got for At above to find Ad, AV, = At = Ady = NOW GET A TARGET/CUP, PLACE IT ACCORDING TO YOUR CALCULATIONS & TRY IT! Adapted from Utah Electronic High School (https://share.ehs.uen.org)
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