During an automobile crash test, the average force exerted by a solid wall on a 2,300 kg car that hits the wall is measured to be 180,000 N over a 0.16 s time interval. What was the initial speed of the car (in m/s) prior to the collision, assuming the car is at rest at the end of the time interval

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.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr