A 50-N applied force (30° to the horizontal) accelerates a 10-kg box across a horizontal sheet
of ice (see diagram). Ben Thayer, Don Thatt, and
Warren Peace are discussing the problem. Ben
suggests that the normal force is 50 N; Don
suggests that the normal force in the diagram is
75 N; and Warren suggests that the normal force
is 100 N. While all three answers seem
reasonable, only one is correct. Which is the
correct normal force? 75 N What error are the
incorrect students likely making?

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !

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