- #1
buzzmath
- 112
- 0
Homework Statement
1.Find the equation for a unit speed planar curve alpha such that k(t)=1/t
2.If the Earth has radius r and the plane in which a pendulum swings in a city rotates by angle theta in 24 hours what is the distance from the city to the equator?
Homework Equations
The Attempt at a Solution
1.Since alpha has unit speed k should equal the second derivative of the norm of alpha. So to find alpha I think I just need to integrate twice from 0 to t and then add a constant. I get a problem because when I integrate 1/s from 0 to t I get ln(s) from 0 to t but ln(0) is not defined. So how would I get around this problem?
2. I don't know where to even start on this problem. Any suggestions?
thanks
Last edited: