A small charged ball, with a charge of -4.50 μC and a mass of 180.0 g...

A small charged ball, with a charge of -4.50 μC and a mass of 180.0 g is dropped down a frictionless pipe. The is a uniform electric field in the region that is directed 30.5o below horizontal with a magnitude of 6.50x 105 N/C. The ball is dropped from rest at point A which is at a height of 2.50 m above the ground. The speed of the ball when it is at point B which is 1.00 m above the ground. (Neglect air resistance. The pipe keeps the ball from moving horizontally but does no work on the ball.)

q = -45.0 nC m = 180. g

a) What is the change in gravitational potential energy of the ball as it moves from point A to point B?
b) What is the change in electrical potential energy of the ball?
c) What is the change in kinetic energy of the ball as it moves from point A to point B?
d) How fast is the ball moving at point B?

Expert Solution

genius_generous answered 2 years ago

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