The position vector r of a particle of mass m is given by the following equation r (t)= t^3 , i + t^2 , j , where =10/3 m s ^ -3 , =5 m s ^ -2 and m=0.1 kg. At t=1 s, which of the following statement(s) is(are) true about the particle?

JEE Advanced 2016 Physics question

The position vector of a particle of mass is given by the following equation

(t)=α +β ,

where , and kg. At s, which of the following statement(s) is(are) true about the particle?

Answer: (A),(B),(D)

At s: m. m/s: (A) true. $ L=m( r× v)=0.1(·10-5·10) k=0.1(-) k=-53

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Question ID VK-026495