Brusoftbleecsha Brusoftbleecsha

22-11-2016
Physics

Answered

(Newton's Law of Motion) A person stands on a scale in an elevator. When the elevator is at rest, the scale reads 700 N. When the elevator starts to move, the scale reads 600N. (a) Is the elevator going up or down? Show your solution to support your answer. (b) What is its acceleration? ...?

Verified Answer :

MissPhiladelphia MissPhiladelphia

25-11-2016

There are three forces that are present in this system. The scale experiences a downwards force of 600N on it from the person, during initial motion; therefore it exerts an equal and opposite force on this person. We write the equation as follows:

−mg+600N=ma
a=(−100N/70Kg)
a=−1.4m.s−2

Answer Link

Related Questions

Which of the following fees would likely be the highest AOverdraft fee BAccount transfer fee CMonthly service fee D

The effects of water pollution on ecosystems can be demonstrated by natural eutrophication are always immediate and lethal can magnify over time within food cha

help its attached to the file below

The process of splitting an atom into two nuclei with smaller masses is called transmutation nuclear fission nuclear fusion chain reaction

Early leaders of the United States who preferred a strong role for the central government became the first members of the 3 points

Which undefined term can contain parallel lines

What was one result of the breakup of the Soviet Union ARussia faced a smooth transition from its communist system to capitalism and democracy BThe Russian mili

1 57 is a rational number ATrue BFalse 2 3141589 is a rational number ATrue BFalse 3 0453 is a rational number ATrue BFalse 4 24 is between which 2 numbers A1 a

Which of the following is influenced by personal economic choices Check all that apply 1the cost of your rent and utilities 2the resources you have available th

factor a2 3a 10

Web Analytics Made Easy - Statcounter