- #1
Vitani11
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Homework Statement
Problem is to verify that bread lands peanut butter side down.The bread makes an angle of 30 deg below the horizontal before if falls off table. At that instant it has angular velocity of 0.956*the square root of g/l where g is gravity and l is the length of the toast at 0.10m. We assume the toast is square and so it's moment of inertia is (ML^2)/3. The height of the table is 0.500m. Assuming the bread is peanut butter side up initially I basically just need to find the change in rotation from the moment it falls off the table until it hits the floor so I can verify that it lands butter side down.
Homework Equations
Theta final = theta initial + omega(t) +(0.5)alpha(t^2)
Torque = (ML^2)/3 *alpha
Y=y initial + vt + 0.5at^2
Omega = initial omega + alpha(t)
A number of other possible kinematic/CoE/force rotational motion equations.
The Attempt at a Solution
I've gotten loads of different answers. I'm not sure how I'm supposed to go about approaching the angular acceleration due to gravity, the time (I've got like 4 times all differently) etc...