Question: The distance-time graph of a particle at time 𝑡 makes angle 45° with time axis. After 1s, it makes angle 60° with time axis. What is the acceleration of the particle?

(A) \sqrt{3}-1unit
(B) \sqrt{3}+1unit
(C) \sqrt{3}unit
(D) 1 unit
Answer : option (A)
Solution :

