Q: A particle moves in a circle of radius 4 m. Its linear speed is given by 4√3 t, where t is the time measured in seconds. At t = 1 s, the angle φ made by the resultant acceleration with the outward radial direction (+r̂) is given by φ. Which one among the following is the correct value of φ?
(a)tan⁻¹ (1 / √3)
(b)tan⁻¹ (1 / √2)
(c)tan⁻¹ (2 / √3)
(d)tan⁻¹ (√3)
Correct Answer: (a)
The correct answer is (c): tan⁻¹ (2 / √3). Subject: Science & Technology | Sub-topic: Physics Note: This answer was determined through AI-based research. Verify against the official answer key when available.