A solid ball encounters a 0.75 m vertical rise (h) on the way back to the ball rack, as the drawing illustrates. Ignore the frictional losses and assume the mass of the ball is distributed uniformly. the translational speed pf the ball is 3.5 m/s at the bottom of the rise. find the translational speed at the top. note that moment of inertia of a solid sphere about an axis tanget to its surface is I = (7/5) MR^2

Sorry my friend i don't know the answer. i am just in 6th

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction