A particle moves in the plane with velocity vector

PHYSICS · Single correct · ISC · Physics · Kinematics · Kinematics

Problem

\mathbf v(t)=\langle t\sin t,\,e^{2t}\rangle

, where

t

is in seconds and the components are in meters per second. What is the magnitude of the particle’s acceleration at

t=0

? (a)

4

(b)

\sqrt{5}

(c)

2

(d)

\sqrt{2}