| 2. |
(Solve
Graphically) A child is watching a small toy car,
which he attached to the end of
a vertically hanging slinky (a spring), bob up and down with the oscillating motion of
the slinky. The position of the toy car relative to the
point of equilibrium (the slinky at rest) is modeled by the
equation
where P is the displacement in meters and t is the time
in seconds. Find the times when the toy car is at the
point of equilibrium (P = 0) for 0 < t <
1.
Answer: 0.04 sec., 0.43
sec., 0.83 sec
|
|
with the horizontal and an initial velocity of
v0 = 100 feet per second. An outfielder
catches the ball 300 feet from home plate. Find
.
