বৃত্তাকার পথে 72 km/h সমদ্রুতিতে চলমান কোনো গাড়ির কেন্দ্রমুখী ত্বরণ 1m/s² হলে, বৃত্তাকার পথের ব্যাসার্ধ কত? 

Explanation:

Another Explanation (5): Let's calculate the radius of the circular path. 🚗💨 Given: * Speed, \(v = 72\) km/h \( = 72 \times \frac{1000}{3600}\) m/s \( = 20\) m/s * Centripetal acceleration, \(a_c = 1\) m/s\(^2\) We know the formula for centripetal acceleration is: \[a_c = \frac{v^2}{r}\] Where: * \(a_c\) is the centripetal acceleration * \(v\) is the speed * \(r\) is the radius of the circular path We need to find \(r\), so we rearrange the formula: \[r = \frac{v^2}{a_c}\] Now, plug in the given values: \[r = \frac{(20 \text{ m/s})^2}{1 \text{ m/s}^2} = \frac{400 \text{ m}^2/\text{s}^2}{1 \text{ m/s}^2} = 400 \text{ m}\] Therefore, the radius of the circular path is 400 meters. ✅