Motion in 2D Question: Solving for Time and Impact of a Thrown Stone

AI Thread Summary
A student throws a stone horizontally from a 26.0 m high cliff at a speed of 15.0 m/s and seeks to determine the time it takes for the stone to hit the beach below. To solve this, kinematic equations involving gravity should be applied, taking into account the height of the cliff. The time of flight can be calculated using the vertical motion equations, while the horizontal distance traveled helps in determining the impact speed and angle. The law of sines may be useful for finding the angle of impact. This problem combines concepts of projectile motion and requires careful consideration of the initial conditions.
rjelalam
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Please Help! Motion in 2D Question

Homework Statement



A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 15.0 m/s. The cliff is h = 26.0 m above a flat horizontal beach, as shown in Figure P3.24.


Homework Equations


How long after being released does the stone strike the beach below the cliff?

With what speed and angle of impact does the stone land?
_________m/s
_________° below the horizontal




The Attempt at a Solution

 
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rjelalam said:

The Attempt at a Solution


I tihnk you forgot that part :confused:

start with the kinematic equations.
 


Well, that depends on the height of the student, unless of course, the 26.0 meters include the student's height with the cliff's. Try to find an equation that involves gravity:smile: as that is most definitely important. Also, find the distance from where the rock was released to the where it lands, then use the law of Sines to find your angle. I hope this is helpful, as this is one of my first posts! :smile:
 
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