# 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?

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) $\sqrt{3}-1$unit

(B) $\sqrt{3}+1$unit

(C) $\sqrt{3}$unit

(D) 1 unit