Ask Question
13 February, 14:43

A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 73 kg, and the height of the water slide is 11.8 m. If the kinetic frictional force does - 5.5 * 103 J of work, how fast is the student going at the bottom of the slide?

+1
Answers (1)
  1. 13 February, 15:28
    0
    The velocity with which the student goes down the bottom of glide is 12.48m/s.

    Explanation:

    The Non conservative force is defined as a force which do not store energy or get he energy dissipate the energy from the system as the system progress with the motion.

    Given are

    mass of the student 73 kg

    height of water glide 11.8 m

    work done as - 5.5*10³ J

    Have to find speed at which the student goes down the glide.

    According to Law of Conservation of energy,

    K. E = P. E+Work Done

    mv²/2=mgh + W

    Rearranging the above eqn for v

    v = √2 (gh+W/m)

    Substituting values,

    V = 12.48 m/s.

    The velocity with which the student goes down the bottom of glide is 12.48m/s.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers