1. You watch your toddler nephew rolling marbles toward the top of a staircase. There are...
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Physics
1. You watch your toddler nephew rolling marbles toward the topof a staircase. There are 18 steps, each 30.0 cm deep horizontally,and separated by 20.0 cm vertically. The marbles leave the upperlanding horizontally and are projected into the air, bouncing downthe steps until they arrive at the lower floor.
(a)Suppose the marble is projected with a speed such that itlands on the ninth step and bounces upward at the same angle atwhich it struck the step, at the same speed. Argue that the marblewill not hit another step before striking the floor of the lowerlanding.
2. If you know the position vectors of a particle at two pointsalong its path and also know the time it took to get from one pointto the other, can you determine the particle's instantaneousvelocity and average velocity? Explain.
1. You watch your toddler nephew rolling marbles toward the topof a staircase. There are 18 steps, each 30.0 cm deep horizontally,and separated by 20.0 cm vertically. The marbles leave the upperlanding horizontally and are projected into the air, bouncing downthe steps until they arrive at the lower floor.
(a)Suppose the marble is projected with a speed such that itlands on the ninth step and bounces upward at the same angle atwhich it struck the step, at the same speed. Argue that the marblewill not hit another step before striking the floor of the lowerlanding.
2. If you know the position vectors of a particle at two pointsalong its path and also know the time it took to get from one pointto the other, can you determine the particle's instantaneousvelocity and average velocity? Explain.
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You can see the logs in the Dashboard.