Physics, 15.07.2019 01:40 isaacdlt15

Atrain is slowing down with an average acceleration of −5.0 m/s2 (negative sign shows deceleration). if its initial velocity is 50. m/s, how far does it travel in 6.0 seconds?

Answers

Answer from: vvaallww

This problem requires 2 kinematics equations. What you first must do is find the Final Velocity with the given values... Vf = Vi + at ... which is Vf = 50 + (-5)(6) which would simplify to Vf = 30. Then you can plug this value along with the given values into the kinematics equation Vf^2=Vi^2 + 2ax. Plugged in this would be 30^2=50^2 + 2 (-5)x. This can then be simplified to find x (distance). Which would be x=160. This means that the train traveled 160m.

Answer from: Quest

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.

Answer from: Quest

the answer should be in the picture.

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Atrain is slowing down with an average acceleration of −5.0 m/s2 (negative sign shows deceleration)....