- #1
LoveandHate
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Homework Statement
A marble rolls off a table with a velocity of 1.93 m/s [horiz]. The tabletop is 76.5 cm above the floor. If air resistance is negligible, determine the velocity at impact.
-[tex]\Delta[/tex]t has been found in a previous question; =0.395 s
-I know the answer is 4.33 m/s [63.5 degrees below the horizontal]
Homework Equations
[tex]\Delta[/tex]d=-.5a([tex]\Delta[/tex]t)2-v2([tex]\Delta[/tex]t)
The Attempt at a Solution
[tex]\Delta[/tex]d=-.5a([tex]\Delta[/tex]t)2-v2([tex]\Delta[/tex]t)
0.765 = -.5(9.8)(.395)+v2(.395)
but I get velocity to equal 1. something m/s?