A glass slides across a table top, goes off the edge, and falls onto the floor b

Question

A glass slides across a table top, goes off the edge, and falls onto the floor below. The table is 0.860 m high and the glass lands 1.21 m from the edge.

a. With what velocity did the glass leave the table top?
b. What was the direction of the glass's velocity as it hit the ground (degrees clockwise from the horizontal)?


These are the things I figured out.

vy = sqrt(2*g*h)
vy = sqrt(16.856)
vy = 4.1056

vx = (sg)/(vy)
vx = (1.21*9.8)/4.1056
vx = 2.8883


Then if my vy and vx are correct i attempted to do part b.

arctan(vy/vx)
=54.87 degrees

Is part b correct?

Explanation / Answer

Your first part is wrong.... there willl be only Vx but no Vy as it slides from table not thrown at some angle and then u can calculate part b

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