A vector has components x=6 m and y=8 m. what is its magnitude and direction?
1 answer:
You might be interested in
Answer:
A)
Explanation:
Since a = g - bv,
We can substitute a = dv/dt into the equation.
Then, the equation will be like dv/dt = g - bv.
So we got first order differential equation.
As known, v = 0 at t = 0, and v = g/b at t = ∞.
Since ⇒
So take the integral of both side.
Since for t=0, v = 0 ⇒