Answer:
1.70 J
Explanation:
The heat dissipated is the difference in the kinetic energies.
This is given by
[tex]E = \frac{1}{2}mv_f^2 - \frac{1}{2}mv_i^2[/tex]
[tex]v_i[/tex] and [tex]v_f[/tex] are the initial and final velocities.
With m = 0.175 kg,
[tex]E = \frac{1}{2}\times0.175(2.85^2 - 5.25^2) = -1.701\text{ J}[/tex]
The negative sign appears because energy is lost.
