1. A cat chases a mouse across a 1m high table. The mouse steps out of the way and the cat slides off the table and strikes the floor 2.2 m from the edge of the table. When the cat slid off the table,
what was his speed?
d, = 12 gt
dx = Vxt

An object, free to move under the influence of gravity, is said to undergo projectile motion. This is a special case of kinematics, and thus can be studied using the kinematics equations:

x
=
v
o
t
+
1
2
a
t
2
v
2
f
=
v
2
o
+
2
a
x
a
=
v
f
−
v
o
t

where
x
is the displacement,
v
is the velocity,
t
is the time, and
a
is the acceleration. Note that, since these are vector equations, the x and y directions must be treated separately.

As newton's first law states a object in motion stays in motion