3. A ball rolls up and then back down an incline.Take the x direction to be...

3. A ball rolls up and then back down an incline.Take the x direction to be upward along the incline, y to be perpendicular to the incline, and the origin to be at the bottom of the incline.

(a) Is it possible for an object to have a negative acceleration and yet be speeding up? If so, give an example; if not, explain why not.

(b) Is the ball’s velocity ever zero? If so, when?(c) Is the ball’s acceleration ever zero? If so, when?

(d) Sketch three graphs, showing (i) the x component of the ball’s acceleration as a function of time; (ii) the x component of the ball’s velocity as a function of time; and (iii) the ball’s x coordinate as a function of time.

Solutions

Expert Solution

Here we apply concept of Newton's laws of motion and concept of kinematics and equation of motion for constant acceleration.

genius_generous answered 1 year ago

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