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A proton moves in a circle in radius 20 cm perpendicular to a field of magnitude 0.005 T. Find the magnitude of its momentum.

User BenR
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Final answer:

To find the magnitude of the proton's momentum, use the equation momentum = mass x velocity. Calculate the velocity of the proton using the formula velocity = 2πr / T. Once you have the velocity, calculate the magnitude of momentum using the equation mentioned.

Step-by-step explanation:

To find the magnitude of the momentum of a proton moving in a circle, we can use the equation:

Momentum = mass x velocity

The mass of a proton is approximately 1.67 x 10^-27 kg. Given that the proton moves in a circle of radius 20 cm (0.2 m) and the field magnitude is 0.005 T, we can determine the velocity of the proton using the formula:

velocity = 2πr / T

where T is the period of the circular motion.

Once we have the velocity, we can calculate the magnitude of momentum using the equation above.

User Gorky
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