# 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?

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) $\dfrac{\left( \sqrt{3}+1\right) }{2}$

Solution :

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