Question
a 2000kg car travelling west with a speed of 20m/s collides at an intersection with a 3000kg car travelling south at a speed of 20m/s. find the direction and magnitude of the velocity of the wreckage after the collision, assuming the collision was perfectly inelastic(that is, they stick together).
Answers
Damon
west inertia before = west inertia after
2000 * 20 = 5000 * Vwest
south inertia before = south inertia after
3000 * 20 = 5000 * Vsouth
V = sqrt (Veast^2+Vsouth^2)
tangent of angle west of south = Vwest/Vsouth
compass course = 180 + that angle
2000 * 20 = 5000 * Vwest
south inertia before = south inertia after
3000 * 20 = 5000 * Vsouth
V = sqrt (Veast^2+Vsouth^2)
tangent of angle west of south = Vwest/Vsouth
compass course = 180 + that angle