A carton is given a push across a horizontal, frictionless surface. The carton has a mass m, the push gives it an initial speed of vi, and the coefficient of kinetic friction between the carton and the surface is μk. (a) Use energy considerations to find an expression for the distance the carton moves before it stops. (Use any variable or symbol stated above along with the following as necessary)
(b) What if the initial speed of the carton is increased by a factor of 3, determine an expression for the new distance d the box slides in terms of the old distance.

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If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic