If the acceleration of the particle is constant in magnitude but not in direction,what type of path does the body follow?

A particle executing SHM is an example of _________. (i)acceleration of constant magnitude and direction. (ii)acceleration of changing magnitude and direction. (iii)acceleration of changing magnitude but constant direction. (iv)acceleration of constant magnitude but changing direction.

A body of mass 5kg is acted upon by two perpendicular forces 8N and 6N .Give the magnitude and direction of the acceleration of the body.