Calculate the magnitude of the linear momentum for a proton

Question

Calculate the magnitude of the linear momentum for the following cases.

(a) A proton with mass 1.67 x 10-27 kilogram, moving with a speed of 5.55 x 106 m/s

kg•m/s

(b) A 17.0 gram bullet moving with a speed of 260 m/s

kg•m/s

(c) A 77.5 kilogram sprinter running with a speed of 11.5 m/s

kg•m/s

(d) The Earth (mass = 5.98 x 1024 kilogram) moving with an orbital speed equal to2.98 x 104 m/s.

kg•m/s