Question

The position vector of a particle is given by r=3t2i+4t2j+7k find the displacement after 10 second?

Answer 1

Displacement:

• `=300 bbi+400 bbj+7 bbk`

Explanation:

• `bbr(t)=3t^2 bbi+4t^2 bbj+7 bbk`

`:. bbr(10)=3(100) bbi+4(100) bbj+7 bbk =300 bbi+400 bbj+7 bbk`