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Author Topic: How would i go about finding the velocity of a ball?  (Read 1149 times)

rohini ragunathan

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rohini ragunathan  asked the Naked Scientists:
   
hi

I have a problem from an in-class lab where i have to find the initial velocity of the ball. Given is the horizontal and vertical displacement of the projectile.

Dy=100cm
Dx=200m

0(theta)= 15degrees.

                   _________
                 /               
               /                   
________/_0=15degrees     
                 |                     
                 |                        
                 |                         
                 |                             
                 |-100cm                  
                 |                              
                 |                                 
            _ _ |_ _ _ _ _ _ _ _ _ _ _ _ _ _                          
                              Dx= 200m

Find the initial velocity.

Thank you for your time.

What do you think?


 

Offline Mr. Scientist

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How would i go about finding the velocity of a ball?
« Reply #1 on: 29/10/2009 05:49:56 »
I don't usually reply to these questions because it is purely homework... but, i'll let you work it out:

Right, first of all you know that 0(theta)= 15degrees - so are you not given an initial velocity for an angle above the horizontal, because to my knowledge you needed it to work out horizontal and vertical components of the initial velocity?
 

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How would i go about finding the velocity of a ball?
« Reply #1 on: 29/10/2009 05:49:56 »

 

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