+0  
 
+5
433
1
avatar

Raj through a baseball at 3.20m/s at an angle of 55 degrees to the ground. How far away from her did the baseball land?

 Jan 24, 2016

Best Answer 

 #1
avatar+129847 
+6

We need to find the time the ball traveled

 

We can use this equation :

 

0 = 3.20sin(55)t  - 4.9t^2   divide through by t

 

0 = 3.20sin(55)  - 4.9t    add 4.9t to both sides

 

4.9t = 3.20sin(55)    divide both sides by 4.9

 

t = 3.20sin(55)/ 4.9  = about .535s

 

So.....the horizontal displacement  is given by :

 

d  = 3.2cos(55)(.535) = about  0.982 m

 

 

cool cool cool

 Jan 24, 2016
 #1
avatar+129847 
+6
Best Answer

We need to find the time the ball traveled

 

We can use this equation :

 

0 = 3.20sin(55)t  - 4.9t^2   divide through by t

 

0 = 3.20sin(55)  - 4.9t    add 4.9t to both sides

 

4.9t = 3.20sin(55)    divide both sides by 4.9

 

t = 3.20sin(55)/ 4.9  = about .535s

 

So.....the horizontal displacement  is given by :

 

d  = 3.2cos(55)(.535) = about  0.982 m

 

 

cool cool cool

CPhill Jan 24, 2016

1 Online Users

avatar