A toy rotates at a constant 5rev/min. is its angular acceleration positive, negative, or zero?
1 answer:
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Answer:
754.3 m
Explanation:
The moment of inertia of the solid disk:
Where m is the disk mass and R is the radius of the disk.
The angular kinetic energy of the disk is then:
By law of energy conservation, this energy is converted to potential energy to pick up the 3kg block
let g = 9.8 m/s2
where = 3 kg is the mass of block