The position of a particle x (in metre) at a time t second is given by the relation r =…
Physics · NEET · NTA Exams — Kinematics
The position of a particle x (in metre) at a time t second is given by the relation \(\vec{r}=\left[3 t \hat{i}-t^{2} \hat{j}+4 \hat{k}\right]\). Calculate the magnitude of velocity of the particle after 5 s.
- 3.55 m/s
- 5.03 m/s
- 8.75 m/s
- 10.44 m/s
Answer
(B) 5.03 m/s
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