Can someone please show me how to get part B. Constants Part A A rock climber st

Question

Can someone please show me how to get part B.

Constants Part A A rock climber stands on top of a 57 m -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0s apart and observes that they cause a single splash. The initial speed of the first stone was 2.5 m/ts How long after the release of the first stone does the second stone hit the water? Express your answer using two significant figures t-3.2 S Correct Part B What was the initial speed of the second stone? Express your answer using two significant figures 15 m/s Submit Incorrect; Try Again; 4 attempts remaining

Explanation / Answer

B

Now the second stone is late. it has to be there in 3.2 - 1 = 2.2 s
again with dist. = v * t + 1/2 * g * t^2, but this time we do not know v
(57 - 0. 5 * 9.8 * 2.2 ^2) / 2.2 = 15.13 m / s as initial speed

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---