Question

A proton follows the curving path shown in red. The dotted gray circle is the kissing circle tangent to the path when the proton is at location A. The proton is traveling at a constant speed of 4.2 x 105 m/s, and the radius of the kissing circle is 0.07 m. The mass of a proton is 1.7 x 10-27 kg. Refer to the directional arrows shown at right when answering the questions below. hb Oj out of the page 84: Ø k into the page d 0 m zero magnitude Jė dp (a) When the proton is at location A, what are the magnitude and direction – p of the parallel component of magnitude = kg-m/s/s (b) When the proton is at location A, what are the magnitude and direction of P the perpendicular component of magnitude = kg.m/s/s

Answer 1

A)

Parallel component = 0

B)

Perpendicular component,

F = mv^2/r

F = 1.7 x 10^-27 x (4.2 x 10^5)^2/0.07 = 4.28 x 10^-15 N