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A 25 kg box sliding to the left across a horizontal surface is brought to a halt in a distance of 15 cm by a horizontal rope pulling to the right with 15 N tension.

Required:
a. How much work is done by the tension?
b. How much work is done by gravity?

Respuesta :

B)is pills everything to the surface of the earth not sure about A
onyebuchinnaji

The work done by tensional force of the rope is 2.25 J and the work done by gravity is 36.75 J.

The given parameters;

  • mass of the box, m = 25 kg
  • distance traveled by the box, d = 15 cm = 0.15 m
  • tension on the rope, T = 15 N

The work done by the tension is calculated as follows;

W = Fd

W = 15 x 0.15

W = 2.25 J

The work done by gravity is calculated as;

W = (25 x 9.8) x 0.15

W = 36.75 J

Thus, the work done by tensional force of the rope is 2.25 J and the work done by gravity is 36.75 J.

Learn more here: https://brainly.com/question/19498865

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