A cat chases a mouse across a 1.5 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.
What was the cat’s speed when it slid off
the table? The acceleration of gravity is
9.81 m/s2 .
Answer in units of m/s

Question

A cat chases a mouse across a 1.5 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.
What was the cat’s speed when it slid off
the table? The acceleration of gravity is
9.81 m/s2 .
Answer in units of m/s

anonymous · Answer

I misread the question. Here's the answer 

Find the time to hit the floor from s = (0.5)(9.81)(t^2) =1.5m

t = sqrt[(1.5)/(0.5)(9.8)] = 0.55 s

constant horizontal velocity u = distance/time = 2.1 m / 0.55 s = 3.8 m/s