We know that the centripetal acceleration is zero, since the summation of forces is the mass times the acceleration in the x- component.
Answer:
a sense of industry
Explanation:
I just had this question and got it right
Explanation:
a) The height of the ball h with respect to the reference line is

so its initial gravitational potential energy
is



b) To find the speed of the ball at the reference point, let's use the conservation law of energy:

We know that the initial kinetic energy
as well as its final gravitational potential energy
are zero so we can write the conservation law as

Note that the mass gets cancelled out and then we solve for the velocity v as


