A horizontal plank with a frictionless axis of rotation at its center has a large mass at one end and a small mass at the other end. It is held stationary and then released. As the plank rotates and before one end hits the ground), the magnitude of the net torque on the plank about the center (increases/decreases/or remains constant) and the magnitude of the angular acceleration (increases/decreases/or remains constant)?
A) te increases and a decreases
B) t decreases and all increases
C) t remains constant and a decreases
D) t decreases and a decreases
E) t remains constant and a remains constant
Answers: 2
Physics, 22.06.2019 09:00, perezsamantha3oqr0za
As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
Answers: 2
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