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Someone standing at the edge of a cliff (as in Figure 3.8)
Chapter 3, Problem 30E(choose chapter or problem)
Someone standing at the edge of a cliff (as in Figure 3.8) throws a ball nearly straight up at a certain speed and another ball nearly straight down with the same initial speed. If air resistance is negligible, which ball will have the greater speed when it strikes the ground below?
Questions & Answers
QUESTION:
Someone standing at the edge of a cliff (as in Figure 3.8) throws a ball nearly straight up at a certain speed and another ball nearly straight down with the same initial speed. If air resistance is negligible, which ball will have the greater speed when it strikes the ground below?
ANSWER:Solution 30E In both cases, the speed will be the same. The ball which was thrown up, will come back to the cliff at the same speed as that of the initial speed. Let us consider the equation-wise solution below. Let the initial speed of