chowlin 12-7-2007 18:45
Physics問題....(change of momentum)
問: A car of mass 1200kg travelling at high speed collides with a stationary car of mass 800kg.
The two cars lock together on impact and slide a distance of 120m before stopping. Tests
on theroad surface show that the frictional force in the slide was 0.20 x the weight of the
vehicles.
calculate: the deceleration of the two vehiclesafter impact.:L .....plX