Physic Labs

Problem 1

Two masses m₁,m₂ with collinear velocities u₁,u₂ collide perfectly inelastically. Find their common velocity and kinetic energy lost. Use the stated ideal model: quantities are constant or vary only as specified, with no extra drag, losses, or external influences. State a sign convention, keep units consistent, and use a classical approximation only where appropriate. (a) Set up the governing equation from a fundamental law. (b) Solve for the requested quantity under the stated conditions. (c) Check the result using a suitable limit, sign, or unit test, and report both the expression and its physical meaning.
Ki=12m1u12+12m2u22K_i=\frac12m_1u_1^2+\frac12m_2u_2^2
problems.proof.analysis

Solve the relation for the unknown while preserving algebraic signs and physical restrictions. Use any stated geometry or definition to express the result in the given data.