Maximize Stone's Height Thrown From 56m Building - 2d Kinematics Help

AI Thread Summary
A stone is thrown from a 56m high building at an angle of 36.9 degrees with an initial speed of 24.0 m/s, and the goal is to determine its maximum height above the ground. To solve this problem, it is essential to break the motion into horizontal and vertical components and analyze each separately. The vertical component of the initial velocity can be calculated using trigonometry. The relationship between vertical velocity, gravitational acceleration, and time is crucial for finding the maximum height. This approach will lead to the correct application of kinematic equations to find the solution.
Shyotic
Messages
1
Reaction score
0

Homework Statement



A stone is thrown at an angle of 36.9 above the horizontal at 24.0 m/s from a building 56m high. What is the maximum height (with respect to the ground) that the stone reaches?

Homework Equations



-

The Attempt at a Solution


No clue. Have a picture drawn and all my knowns and unknowns but not sure what the solution is, or how you arrive at it.
 
Last edited:
Physics news on Phys.org
Check your textbook, class notes, or the web for suitable Relevant Equations. You should have a set of basic kinematic equations in your inventory of handy formulas (sometimes called the SUVAT equations of motion). It's not possible to have "No clue" if you're enrolled in a class teaching the subject :smile:

So what equation(s) are relevant?
 
Welcome to PF;
There is a good chance that you have just been covering the kind of mechanics that this relates to called "ballistics". Does that ring a bell?
You should go through your course notes for equations and examples to do with this.

In all ballistics problems, a good place to start is:
Divide the motion into horizontal and vertical components - and draw a separate v-t graph for each one: one above the other. Make sure the time-axes have the same scale.
 
Here is my strategy to solve this question, forgive me if it is wrong:

1) Draw a diagram of the situation (its good that you did it)
2) Find the vertical component of the velocity vy using basic trigonometry
3) Then find the vertical height (clues: consider the relationship between vy, g and t)

Hopefully this may help you further!
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanged mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top