I want to slide down the slide

Problem

Despite what happened in Problem 2, A somehow bounced back and decided to play on the slide. Due to dieting, A’s weight is now $m_0$m0​. The slide is a straight line with no curves, rising $h$h meters above the ground and having an angle of inclination of $\theta$θ.

Assume that on this slide, regardless of the player’s posture, $\mu$μ of the total energy is lost as frictional heat.

Constraints

$h=20\ \mathrm{m}$h=20 m

$\theta=30°$θ=30°

$\mu=30\ \%$μ=30 %

$m_0=72\ \mathrm{kg}$m0​=72 kg

$\mathrm{g}=9.8\mathrm{m/s^2}$g=9.8m/s2

Answer Format

Give the value obtained by multiplying the kinetic energy (J) just before reaching the bottom by 1000.