His acceleration is
<em>(-0.05) · (his speed at the bottom of the hill) </em>m/s²
In order to see what forces are acting upon an object in every direction.
Ok. what rock tho. cause all the rocks i have is all bleh and boring
That all depends on the direction of the force. If the force is parallel to the ramp, then the acceleration of the ball is 5 m/s^2. If the force isn't parallel to the ramp, then the acceleration is less.
