Solving Kinematics Problem: Two Stones Dropped from 60m Cliff

In summary, the conversation is about a person seeking help with a kinematics problem involving two stones being dropped from a cliff. The second stone is dropped 1.6 seconds after the first and the person is trying to find the distance between the two stones when the separation is 36 meters. They mention having a quiz the next day and the answer to the problem is 10.9 meters. The conversation ends with a reminder to post in the correct section next time and to get well rested for the quiz.
  • #1
superstorebug
5
0
I'm fairly new with this so I hope I've posted at the right place!


I don't understand how to go about doing the following kinematics problem:

Two stones are dropped from the edge of a 60-m cliff, the second stone 1.6s after the first. How far below the top of the cliff is the second stone when the separation between the two stones is 36 m?

I hope you can help because I have a quiz on this stuff tomorrow! Thanks in advance.

ANy help will be greatly appreciated.
 
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  • #2
Oh the answer is 10.9 meters
 
  • #3
Welcome to physics forums

Good job finding the answer. Next time please check andpost in the right section though >.>

get well rested for that quiz
 

FAQ: Solving Kinematics Problem: Two Stones Dropped from 60m Cliff

How do you calculate the acceleration of the stones?

The acceleration of the stones can be calculated using the formula a = (vf - vi) / t, where vf is the final velocity, vi is the initial velocity, and t is the time taken for the stones to reach the ground.

What is the initial velocity of the stones?

Since the stones are being dropped from a stationary position, their initial velocity is 0 m/s.

How do you determine the final velocity of the stones?

The final velocity of the stones can be calculated using the formula vf = vi + at, where vi is the initial velocity, a is the acceleration, and t is the time taken for the stones to reach the ground.

What is the time taken for the stones to reach the ground?

The time taken for the stones to reach the ground can be calculated using the formula t = √(2h / g), where h is the height of the cliff (60m in this case) and g is the acceleration due to gravity (9.8 m/s²).

How do you find the distance between the two stones when they hit the ground?

The distance between the two stones can be found by calculating the horizontal displacement of each stone using the formula d = v * t, where v is the horizontal velocity of the stone and t is the time taken for the stone to reach the ground.

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