Parabolic trajectories Show that the two-dimensional trajectory x ( t ) = u 0 t + x 0 and y ( t ) = − g t 2 2 + v 0 t + y 0 , for 0 ≤ t ≤ T , of an object moving in a gravitational field is a segment of a parabola for some value of T > 0. Find T such that y ( T ) = 0.
Parabolic trajectories Show that the two-dimensional trajectory x ( t ) = u 0 t + x 0 and y ( t ) = − g t 2 2 + v 0 t + y 0 , for 0 ≤ t ≤ T , of an object moving in a gravitational field is a segment of a parabola for some value of T > 0. Find T such that y ( T ) = 0.
Solution Summary: The author calculates the value of t from x(t)=u_0t+x
Parabolic trajectories Show that the two-dimensional trajectory x(t) = u0t + x0 and
y
(
t
)
=
−
g
t
2
2
+
v
0
t
+
y
0
, for 0 ≤ t ≤ T, of an object moving in a gravitational field is a segment of a parabola for some value of T > 0. Find T such that y(T) = 0.
4. Suppose the demand for a certain item is given by D(p)=-2 p² - 4p+350, where p represents the price of
the item in dollars.
a) Find the rate of change of demand with respect to price.
b) Find and interpret the rate of change of demand when the price is $11.
√3-x, x≤3,
2. For f(x) =
1
find each of the following.
x > 3,
x-3'
1. f(-6)
2. f(3)
3. f(7)
3. Find the domain of each of the following functions.
1. Using the definition of the derivative, find f'(x). Then find f'(2), f'(0) and f'(3) when the derivative exists.
a) f(x)=5x²-6x-1
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