Question

a 1.01 kg ball is attached to a ceiling by a 1.08 m long string. the height of the room is 3.13 m. the acceleration of gravity is 9.81 m/s 2 . what is the gravitational potential energy associated with the ball relative to a) the ceiling? answer in units of j

Answer 1

The gravitational potential energy associated with the ball is found to be 20.31 Joules.

The mass of the ball is 1.01 kg and it is attached to the string of length 1.08m. The height of the room is 3.13 m.

So, the height of the ball with respect to the ground is (3.13-1.08)m

Height with respect to the ground is 2.05m.

The gravitational potential energy associated with the ball is given by,

U = MgH

M is mass of ball,

H is the height of the ball with respect to the ground,

g is the values of acceleration due to gravity,

Putting values,

U = 1.01(9.81)(2.05)

U = 20.31 Joules.

So, the gravitational potential energy associated with the ball is 20.31 Joules.

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