a block mass m1 collides with a block of mass m2 such that m1 becomes at rest and m2 slides across the surface until it reaches the frictional surface. the coefficient of friction between m2 and surface is uk. What is the rate of change of the speed of the center of mass of the two block system after m2 enters frictional surface

are their multiple choices ?

explanation:

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

massxgravity x heght=weightxheight= pe

4900=490xh

h=10