Homework Help: 11th grade

Posted by elana on Sunday, October 17, 2010 at 8:25pm.

a soccer ball is kicked with an initial velocity of 5.0 m/s in a direction of 30 degrees above the horizontal
a. what are the initial components of the velocity?
vix=
viy=
b. what are the components of the veloicty just before the ball hits the ground?
vx=
vy=

11th grade - Josh, Sunday, October 17, 2010 at 10:22pm
vix = 4.33
viy = 2.5

vx = 4.33
viy = -2.5

vix= 5 * cos(30)
viy= 5 * sin (30)

vx= the same because no force is acting on it
vy= -viy because nature of parabolic motion and ball is travelling down

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