Thursday

April 24, 2014

April 24, 2014

Posted by **Lauryn** on Wednesday, September 14, 2011 at 8:40pm.

a)Find the speed at which the ball clears the wall.

I calculated this correctly and got 18.13 m/s.

(b) Find the vertical distance by which the ball clears the wall.

I know that dy=vy0*t but I tried using that equation and couldn't get the answer.

I did this and it was incorrect

v0sin53 and got 18.13*sin53= 14.48

then I tried plugging that into the y, to get y=14.48sin53(2.2)-1/2(-9.8)(2.2^2)

I got 25.44-23.716=1.725, the computer assignment says that is incorrect. I don't know what I am doing wrong

(c) Find the horizontal distance from the wall to the point on the roof where the ball lands.

I can't figure out how to do the last two, can anyone please help me set up these problems so I can figure out how to solve them? Thank you.

- Physics for Engineers -
**Quidditch**, Wednesday, September 14, 2011 at 9:04pmCheck part b comments on your previous post.

- Physics for Engineers -
**Lauryn**, Wednesday, September 14, 2011 at 9:16pmthanks for your help!

**Related Questions**

Physics - A ball is rolled off the flat roof of a 15-storey building that is 45 ...

HARD PHYSICS - A playground is on the flat roof of a city school, 5.7 m above ...

college Physics I - A playground is on the flat roof of a city school, 5.2 m ...

college Physics - A playground is on the flat roof of a city school, 5.2 m above...

Physics - A playground is on the flat roof of a city school, 7.00 m above the ...

College Physics - A playground is on the flat roof of a city school, 5.2 m above...

math - A playground is on the flat roof of a city school, 5.8 m above the street...

physics - Suppose you roll a bowling ball at 2.5 m/s across the roof of a flat ...

physics - Suppose you roll a bowling ball at 2.5 m/s across the roof of a flat ...

physics - during a thunderstorm,wind with a speed of 47.7 m/s blows across a ...