Calculate the wall forces,upwards and n to the right

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Q. When an 82.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2 x 10^3 J. By how much does the potential energy of a 17 kg child increase when the child climbs a normal staircase to the second floor?

Q. A horizontal beam is supported by a pivot on a wall at one end and a cable at the other end that exerts a force T=923N at an angle 62.5.A worker standing on the beam weighs 580 N and the beam itself weighs 1650N.calculate the wall forces,upwards and n to the right.

Reference no: EM1353824

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