A ball rolls off a table with a horizontal velocity of 8 m/s. It takes 1.4 seconds for it to reach the floor. Use the approximate value of g as 10 m/s2 to solve the following problem: What is the vertical component of the ball’s velocity just before it hits the floor? (Use g = 10 m/s2.)

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.

neither accurate nor precise.