Answer:
Step-by-step explanation:
To find the changes in the slope of the function s(t) we find its derivative
Now we make
The particle changes direction for the first time at t = 2 sec
The position at t = 2 sec is:
The acceleration after t = 2 sec is the second derivative of s(t), evaluated at t = 2:
Ten: 60
Hundred: 900
Thousand: 4000
Ten thousand: 60000
Answer:
And if we solve for m we got:
And replacing we got:
And if we round to the nearest value we got 456 Kg
Step-by-step explanation:
For this problem we know the following info:
represent the volume
represent the density
We want to find the mass and we can use the following definition:
And if we solve for m we got:
And replacing we got:
And if we round to the nearest value we got 456 Kg
Cos Ф - cos Ф.sin² Ф
sin² Ф = 1 - cos² Ф
cos Ф - cos Ф( 1-cos² Ф) = cos Ф - cos Ф - cos³ Ф = cos³ Ф
cos Ф - cos Ф.sin² Ф = cos³ Ф