Vault Of Euclid

Distance Traveled by a Particle with Trigonometric Position

Rectilinear and curvilinear motion core

A particle moves along the \(x\)-axis according to the equation \( x = \frac{1}{3}t^3 - \frac{1}{2} \cos 2t + 3.5 \). Find the distance traveled between \( t=0 \) and \( t = \pi/2 \).
calculus-irectilinear-motiondistance-traveleddisplacementvelocitydifferentiationtrigonometric-functionschain-ruleevaluate-distancemonotonicitysinecosine

The solution and a full step-by-step explanation are here. Sign in to read them.

What you need first

What this problem tests

Tests the ability to differentiate a position function, analyze the sign of the resulting velocity to check for changes in direction, and compute the net displacement.

This is a standard Calculus I problem on rectilinear motion, testing the distinction between displacement and total distance traveled.

More on Rectilinear and curvilinear motion