numerical-problem-5-motion-and-force-chapter-3-physics-11 June 1, 2020 A proton is moving with a speed of 1 times 10^7 m/s passes through a 0.020 cm thick sheet of paper and emerges with a speed of 2.0 times 10^6 m/s. Find retardation and time taken to pass through 1 Comment Problem 5: A proton is moving with a speed of 1 × 107 m/s, passes through a 0.020 cm thick sheet of paper and emerges…