Homework Help: physics

Posted by Val on Sunday, September 26, 2010 at 6:17pm.

A stone thrown off a bridge 20 m above a river has an initial velocity of 12 m/s at an angle of 450 above the horizontal.
a. What is the range of the stone?
b. At what velocity does the stone strike the water?
(magnitude and direction)

physics - bobpursley, Sunday, September 26, 2010 at 7:21pm
break the initial velocity into horizontal and vertical components.

In the vertical:
-20=0+Vvi*t-4.9t^2
solve for t.
Range: Vhi*t
physics - Anonymous, Sunday, September 16, 2012 at 10:09pm
,,,,

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