Question

A spaceship passes you at a speed of 0.800c. You measure its length to be 40.2 m .

Part A How long would it be when at rest? Express your answer with the appropriate units.

Part B

What is the speed of a pion if its average lifetime is measured to be 4.80 ×10−8s? At rest, its average lifetime is 2.60 ×10−8s.

Part C

Calculate the kinetic energy of a proton traveling 2.69×10⁸ m/s .

Express your answer with the appropriate units.

Part D

Calculate the momentum of a proton traveling 2.69×10⁸ m/s .

Express your answer with the appropriate units.

Thank you a lot

Answer 1