Question : The distance-time graphs of a particle at time 𝑡 makes angle 45° with the time axis. After two seconds, it makes an angle 60° with the time axis. What is the average acceleration of the particle?
(A) 1/2
(B) \dfrac{\sqrt{3}}{2}
(C) \dfrac{\left( \sqrt{3}-1\right) }{2}
(D) \dfrac{\left( \sqrt{3}+1\right) }{2}
Answer : option (C)
Solution :
