- #1
Phillipc
- 2
- 0
Homework Statement
A student begins swinging a mass on a string in a horizontal circle. The mass is 1.0 Kg, it starts from rest, the string is 2.0m, the acceleration rate is 2.0 rad/s2, and this is done for 5.0 seconds. Derirmine the final tangential speed of the mass, the angular displacement in revolutions, and the tension force in the string at 5.0s
At 5.0s the string breaks and the mass becomes a projectile. It is released 2.0m above the ground. Determine the final velocity (magnitude and direction) of the mass as it reaches the level of the ground.
Where the projectile reaches the level of the ground there is another identical mass (1.0 Kg) at the top of an inclined plane whose angle is the same as the final angle of the projectile found in part 2 the collision between the masses is inelastic. Determine the final velocity of the 2 masses after the collision.
The masses now slide down the inclined plane to the bottom. The coefficient of friction between the masses and the plane is .05, the length of the incline is 2.0m. Determine the work done by friction while sliding, the initial kinetic energy at the top and the final kinetic energy at the bottom. Determine the net force and acceleration down the incline using the components of weight and the force of friction. Now determine the final velocity using kinematics and verify the final kinetic energy at the bottom.
The masses now begin sliding across a horizontal frictionless surface. They then collide and stick to a spring which is fixed to a wall and begin to oscillate. The value of the spring constant is .1 N/m. determine the amplitude and the angular frequency of the oscillations.
Homework Equations
2Pi R
V=-------
T
The Attempt at a Solution
I'm going to be completely honest I have been out of school because of family matters and i don't know where to begin with this problem, any help will be GREATLY APPRECIATED!
Thank You
Phillip M Carreno
Last edited: