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Constants I Correct A tennis ball rolls of the edge of a tabletop 0.500 m above the oor and strikes the oor at e peint120 m horizontaliy thorn the...

....physics questions........................

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스크린샷 2018-04-20 오전 1.25.49.png

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스크린샷 2018-04-20 오전 1.29.01.png

스크린샷 2018-04-20 오전 1.25.49.png

Constants «I Correct
A tennis ball rolls of the edge of a tabletop 0.500 m above the
floor and strikes the floor at e peint120 m horizontaliy thorn the
edge of the table.
'7 Part C Find the magnitude of the velocity of the ball just before it strikes the floor. v= 4.89 mfg ‘ Prwlous Mmre l «I Correct ‘ '7 PartD Find the direction of the velocity of the ball just before it strikes the floor. 6' = D ° below the horizontal.

스크린샷 2018-04-20 오전 1.29.01.png

Constants v Part A Afirefiphh‘ng cram use: a water cannon thll shacks waler al 25.0
111/5 318 fixed angle 0* 49.0 ° above I115 horizontal. The How far from the buiiding should they posilion their cannon? There are two possibilities (111 < d1); can you gel them both? (Hint: Start with a ske’ach showing
firefighters ward in direct the water at a blaze #131 is 15.0 m the trajectory at [he water.) above ground \avel. m Pmlous Antwan Laqunsl Answer ‘ X Incomcl: Try Apaln; 4 afinrnpls mmalnlng " Part3 IIwon

Top Answer

1) part D h = 0.5 m. h = (1/2)gt^2 g = 9.8 m/s^2 0.5 = (1/2)(9.8)t^2 t = [1/9.8]^0.5  = 0.319 s vertical component of speed... View the full answer

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