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March 30, 2015

March 30, 2015

Posted by **Anonymous** on Tuesday, November 17, 2009 at 9:08pm.

table. The mouse steps out of the way, and

the cat slides off the table and strikes the floor

1.5 m from the edge of the table.

The acceleration of gravity is 9.81 m/s2 .

What was the cat’s speed when it slid off

the table?

Answer in units of m/s.

- physics -
**drwls**, Wednesday, November 18, 2009 at 5:06amFirst, calculate the time T that it takes to fall Y = 0.51 m. That time will not be affected by the initial horizontal velocity.

Since Y = (1/2) g T^2,

T = sqrt(2Y/g) = 0.323 s

The initial velocity can be computed from the horizontal distance X that the mouse travels while falling, since

X = V T .

Solve for V

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