Calculating the Speed of a Suspended Ball at 90 Degrees | Physics Homework Help

  • Thread starter Thread starter robgazza
  • Start date Start date
  • Tags Tags
    Ball
Click For Summary
SUMMARY

The discussion focuses on calculating the speed of a ball suspended vertically and subjected to a horizontal force equal to its weight as it reaches a 90-degree angle. The relevant parameters include the mass of the ball (m), the length of the string (L), and gravitational acceleration (g = 10 m/s²). Participants emphasize the need to apply kinematic equations to separate the motion into x and y components, considering the forces acting on the ball, namely gravity and the horizontal force. The solution requires a clear understanding of the equations of motion and the constraints imposed by the string.

PREREQUISITES
  • Understanding of kinematic equations of motion
  • Knowledge of forces and their components in physics
  • Familiarity with gravitational acceleration (g = 10 m/s²)
  • Basic principles of pendulum motion and constraints
NEXT STEPS
  • Study the derivation of kinematic equations for two-dimensional motion
  • Learn about the dynamics of pendulum systems and tension forces
  • Explore the concept of centripetal acceleration in circular motion
  • Investigate the effects of external forces on suspended objects
USEFUL FOR

Students studying physics, particularly those tackling problems related to forces and motion, as well as educators seeking to clarify concepts of dynamics and kinematics.

robgazza
Messages
6
Reaction score
0

Homework Statement



a ball of mass m is attached to a light string of length L and suspended vertically. A constant force, which magnitude F equals the weight of the ball, is applied horizontally to the ball. Determine the speed of the ball as t reaches the 90degree level in terms of L and g= 10 m/s^2

Homework Equations



not sure really!

http://img132.imageshack.us/img132/7374/phyiscsek4.jpg

The Attempt at a Solution



I honestly do not have a clue where to start on this question. Can anyone give me a start?
 
Last edited by a moderator:
Physics news on Phys.org
desperately need help! :(
 
Write the equations of motion for the ball. The string constrains how it moves, and the two forces acting on it are gravity downward and the horizontal pushing force. What are the kinematic motion equations that you should start with? Use x and y coordinates to separate the two components of position, velocity and acceleration...
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
1K
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 4 ·
Replies
4
Views
6K
  • · Replies 31 ·
2
Replies
31
Views
5K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 24 ·
Replies
24
Views
4K
  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K