- #1
Math10
- 301
- 0
Homework Statement
Find the speed of an object with r(t)=e^(t)<cos(t), sin(t), 1>.
Homework Equations
None.[/B]
The Attempt at a Solution
v(t)=e^(t)<cos(t)-sin(t), cos(t)+sin(t), 1>
I know that the speed is abs(v(t)) and the answer in the book is sqrt(3)*e^(t). So how do I find the speed?