Position, Velocity, and Acceleration Using Integrals Practice Test

A particle’s velocity is $v(t)=4-t^2$ (m/s) for $0\le t\le2$, with $x(0)=0$. What is $x(2)$?

Velocity is $v(t)=\cos t$ (m/s) for $0\le t\le\pi$, with $x(0)=0$. What is the displacement on $0,\pi$?