A box weighing 4 lbs. is on a frictionless surface in circular motion with a radius of 2 ft. from the center post and a tangential velocity of 5 ft/sec. Suddenly at point A the rope holding the box to the post starts to be retracted at a velocity of 4 ft/sec. What is the speed of the box at point B, where the radius has reduced to 1 ft.? After pulling the rope in from A to B, how much work was done? You may neglect the mass of the rope and the size of the box.

hey , the answer is c

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

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.