Aparticle moves in the xy plane with a constant acceleration given by a =-4.0jm/s^2. at t=0, its position and velocity are 10im and (-2.0i+8.0j) m/s, respectively. what is the distance from the origin to the particle at t=2.0s?

distance = 24.7m

Explanation:

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.