Again consider the scenario from the previous problem: A sprinter named Ben has challenged a beam of light to a race in the 100-meter dash. The race is held in a stadium full of spectators.
At the start signal, a laser beam is turned on at the start line, pointed down the track. At the same instant, Ben bursts out of the starting blocks at 99 of the speed of light (0.99c). According to Ben, what happens? A) The light beam gradually pulls ahead of him and wins the race because it is going 1 of the speed of light faster than him.
B) The light beam instantly finishes the race, before Ben even has a chance to start.
C) The light beam moves out ahead of him at the full speed of light, winning the race easily.
D) Ben wins the race and becomes a hero.
Question 2
Newton showed that Kepler's laws are
A) natural consequences of the law of universal gravitation.
B) seriously in error.
C) actually only three of seven distinct laws of planetary motion.
D) the key to proving that Earth orbits our Sun.
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Problem Solving: Aha! Moments
A monochromatic beam of light of wavelength 600 nm is incident normally on a diffraction ...
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Physics - Exercise Problem
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