Question

A proton (m = 1.67 x 10^2 kg) is placed a distance x to the left...

A proton (m = 1.67 x 10^2 kg) is placed a distance x to the left from a long, vertical wire of
linear charge density A. The proton is then released from rest. If the magnitude of the initial
acceleration of the proton is 0.52 x 10^7 m/s2 what is the value of A (in C/m)? Take x = 40cm.
K= 9* 10^9 N.m2.C2, E= 8.85 x 10^-12

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