Question

A 50 kg box slides down an inclined plane 8.3 m long and 4 m high. If the friction force between the box and the inclined plane is 112 N, what is the work done by the friction force?

257

likes

1286 views

Answer to a math question A 50 kg box slides down an inclined plane 8.3 m long and 4 m high. If the friction force between the box and the inclined plane is 112 N, what is the work done by the friction force?

$Expert avatar$

Madelyn

4.7

86 Answers

Solución: El trabajo realizado por la fuerza de fricción está dado por W_f=fd dónde f es la fuerza de fricción entre el objeto y la superficie, y d es la distancia recorrida por el objeto. Según el teorema de Pitágoras, la distancia recorrida es d=\sqrt{x^2+y^2}

d=\sqrt{8.3^2+4^2}

d\aproximadamente9.214m Por tanto, el trabajo realizado es W_f=112\cdot9.214 W_f\aprox1031.921J Respuesta: 1031,921 julios

Frequently asked questions (FAQs)

What is the relationship between the sum of the distances from any point on the ellipse to its two foci and the length of the major axis?

What is the basis of vectors in R³?

Question: Solve the inequality 3x + 5 > 20, where x represents a real number.

New questions in Mathematics

What is the coefficient of elasticity of the material that must be placed on the heel of the 10 cm high clog, with a base area of 2 cm² so that it deforms only 2 cm when the force on it will be a maximum of 600 N.

what is 9% of 307

If L = (-2, -5) is reflected across y= -4 , what are the coordinates of L?

6. Among 100 of products there are 20 rejects. We will randomly select 10 of products. The random variable X indicates the number of rejects among the selected products. Determine its distribution.

Suppose X has a Poisson distribution, with a mean of 0.4. Determine the probability that x is at most 2.