Homework Help: physics

Posted by bekah on Monday, December 5, 2011 at 9:30am.

Joe stands on a bridge kicking stones into the water below. If he kicks a stone with a horizontal velocity of 3.10 m/s, and it lands in the water a horizontal distance of 6.60 m from where Joe is standing, what is the height of the bridge? Enter m as unit. Draw the problem.

physics - Henry, Tuesday, December 6, 2011 at 8:25pm
Dx = Xo*t = 6.6 m.
3.1t = 6.6,
t = Tf = 2.13 s. = Fall time = Time in flight.

h = Vo*t + 0.5g*t^2,
h = 0 + 4.9(2.13)^2 = 22.2 m.

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