Question

A particle is moving in the xy plane with constant acceleration. At t = 0, the particles are present
at x = 4 m, y = 3 m. The acceleration is given by the vector a = 4 m / s2
i + 3 m / s2
j. The initial velocity vector is v = 2 m / s i - 9 m / s j.
a. Find the velocity vector at t = 2 s.
b. Find the position vector at t = 4 s, and give the magnitude and direction.

Answer 1

I am in class 1st so sorry I cannot answer....

Answer 2

Answer:

can't understand................