Cameroon north west regional mock 2020 ol additional mathematics 2

Cameroon north west regional mock 2020 ol additional mathematics 2

Cameroon north west regional mock 2020 ol additional mathematics 2

4. two particles A and B are moving in the plane such that at time 1 seconds the position vectors A and B (t2i + 2j)m respectively

a. find the distance of B from origin when t = 2 seconds

b) find the velocity of A when t  = 3 seconds

c) find the Acceleration of A