Projectile motion only provided acceleration diatance

AI Thread Summary
To determine the initial vertically upward speed and horizontal speed of a projectile, it's essential to differentiate between vertical and horizontal displacements. The vertical displacement only accounts for the distance from launch to maximum height, while the horizontal displacement covers the entire trajectory. It is crucial to recognize that only horizontal acceleration is zero, necessitating the use of equations that incorporate vertical acceleration. The discussion highlights a common misunderstanding in applying these principles to solve projectile motion problems. Accurate calculations require careful attention to these distinctions.
James1019
Messages
6
Reaction score
0
TL;DR Summary: Find initial vertically upward speed of the ball
Find horizontal speed of the speed
Find angle

How to:
Find initial vertically upward speed of the ball
Find horizontal speed of the speed
Find angle
20231028_092617.jpg
i try to solve it but it didn't work
16984816945591010657629979908053.jpg
 
Physics news on Phys.org
1. You have mixed up vertical and horizontal displacements.
2. The given vertical displacement is from launch to max height, but the given horizontal displacement is for the whole trajectory.
3. Only the horizontal acceleration is zero. You need an equation involving vertical acceleration.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Thread 'A bead-mass oscillatory system problem'
I can't figure out how to find the velocity of the particle at 37 degrees. Basically the bead moves with velocity towards right let's call it v1. The particle moves with some velocity v2. In frame of the bead, the particle is performing circular motion. So v of particle wrt bead would be perpendicular to the string. But how would I find the velocity of particle in ground frame? I tried using vectors to figure it out and the angle is coming out to be extremely long. One equation is by work...
Back
Top