Agymnast is swinging on a high bar. the distance between his waist and the bar is 0.905 m, as the drawing shows. at the top of the swing his speed is momentarily zero. ignoring friction and treating the gymnast as if all of his mass is located at his waist, find his speed at the bottom of the swing.

5.959 m/s

Explanation:

m = Mass of gymnast

u = Initial velocity

v = Final velocity

= Initial height

= Final height

From conservation of Energy

Velocity of gymnast at bottom of swing is 5.959 m/s

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.