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S htt tps://session.masteringphysics.com/myct/itemView?assignmentProblemID-62169020 AP Physics 1 Signed in as Zac Peterson Heh Sloe FElectricity Part1Problem 20.9 Resources previous | 5of8 I next Problem 20.9 Part A Two 20 kg masses are 1.0 m apart on a frictionless table. Each has 1.0 p C of charge. What is the magnitude of the electric force on one of the masses? Express your answer using two significant figures. Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining Part B What is the initial acceleration of each mass f they are released and allowed to move? Express your answer using two significant figures. 901 AMExplanation / Answer
a)
From Coloumb's Law ,The electrostatic force is given by
F=KQ2/r2 =(9*109)(1*10-6)2/12
F=9*10-3 N
b)
acceleration
a=F/m=(9*10-3)/2
a=4.5*10-3 m/s2
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