physics
posted by jena .
A cat chases a mouse across a 1.7 m high
table. The mouse steps out of the way, and
the cat slides off the table and strikes the floor
2.1 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.

The time to fall H = 1.7 m, when there is zero initial vertical velocity component, is
t = sqrt(2H/g) = 0.589 s
The cat's speed when sliding off is
Vx = 2.1 m/0.589 s = 3.57 m/s,
since the cat's horizontal velocity component, Vx, remains constant during the fall.
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