A particle moves according to the equation \( \mathrm{x}=\mathrm{a} \cos \pi \mathrm{t} \). The ...

A particle moves according to the equation \( \mathrm{x}=\mathrm{a} \cos \pi \mathrm{t} \). The ...

A particle moves according to the equation \( \mathrm{x}=\mathrm{a} \cos \pi \mathrm{t} \). The distance covered by it in \( 2.5 \mathrm{~s} \) is (A) \( 3 a \) (B) \( 5 \mathrm{a} \) (C) \( 2 a \) (D) \( 9 \mathrm{a} \). \( P \) W 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live