Answer:
Step-by-step explanation:
The position function for the free-falling object is , where t is measured in seconds and y is measured in meters. The velocity function is obtained by deriving it:
, where v is measured in meters per second.
Velocities at given times are, respectively:
Answer: Length = 12 units
Width = 6 units
Step-by-step explanation:
Let the width of the rectangle be represented by x.
Since the length of a rectangle is twice its width, thus means that the length will be: = 2x
Perimeter of a rectangle = 2(l + w)
where,
L = length
W = width
Therefore,
Perimeter = 2(l + b)
36 = 2(2x + x)
36 = 2(3x)
36 = 6x
x = 36/6
x = 6
Width = 6 units
Length = 2 × Width = 2 × 6 = 12 units
Answer:
Step-by-step explanation:
momentum=mv=7.50v=70.4
v=70.4/7.5≈9.39 m/s