Question

Asked Dec 3, 2019

52 views

At time ti

, the kinetic energy of a particle is

41.1 J and its potential energy is 11.9 J. At

some later time tf , its kinetic energy is 18.2 J and 34.8 J for potential energy

If the potential energy at time tf is 7.54 J,

what is the work done by the nonconservative

forces acting on the particle?

Answer in units of J.

Step 1

The work-energy theorem gives,

Step 2

Substitute the values in the above equation consider...

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