A 36.0-ton railroad freight car collides with a stationary caboose car. They couple together and 30% of the initial kinetic energy is dissipated as heat. Find the weight of the caboose.
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Step 1: Write the expression for the kinetic energy lost in the collision: \[ \frac{1}{2} \frac{m_1 m_2}{m_1 + m_2} (u_1 - u_2)^2 = \frac{30}{100} \times \frac{1}{2} m_1 v_1^2 \] Show more…
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A railroad freight car of mass $3.18 \times 10^{4} \mathrm{kg}$ collides with a stationary caboose car. They couple together, and 27.0$\%$ of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose.
A M kg railroad freight car collides with a stationary caboose car. They couple together and a% of the initial kinetic energy is dissipated as heat. Find the mass m of the caboose.
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Freight Car A railroad freight car of mass $3.18 \times 10^{4} \mathrm{~kg}$ collides with a stationary caboose car. They couple together, and $27.0 \%$ of the initial kinetic energy is transferred to nonconservative forms of energy (thermal, sound, vibrational, and so on). Find the mass of the caboose. Hint: Translational momentum is conserved.
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