The position of a particle x (in metres) at a time t seconds is given by the relation r=(3t -t^2 +4 k)....

Question

The position of a particle x (in metres) at a time t seconds is given by the relation r=(3t -t^2 +4 k). Calculate the magnitude of velocity of the particle after 5 seconds

Accepted Answer

(D)

JEE Main Physics question

Solution