Two particles of mass m and 2m have their position vectors as a function of time as r_1(t)=ti^{⋀}-t^3j^{⋀}+2t^2k^{⋀} and r_2(t)=ti^{⋀}-t^3j^{⋀}-t^2k^{⋀} respectively (where t is the time). Which one of the following graphs represents the path of the centre of mass

KEAM 2018 Physics and Chemistry Paper

Question : 6 of 120

Marks: +1, -0

Two particles of mass m and 2m have their position vectors as a function of time as r1(t)=t

⋀

−t3

⋀

+2t2

⋀

and r2(t)=t

⋀

−t3

⋀

−t2

⋀

respectively (where t is the time). Which one of the following graphs represents the path of the centre of mass

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