On the other side of the pivot point an adult pushes straight down on the teeter-totter with a force of 190 n. determine the direction the teeter-totter will rotate if the adult applies the force at each of the following distances from the pivot. (assume the teeter-totter is horizontal when the adult applies the force and that the child's weight applies a clockwise torque.)
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Physics, 22.06.2019 13:00
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
Physics, 23.06.2019 03:30
Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.
Answers: 1
On the other side of the pivot point an adult pushes straight down on the teeter-totter with a force...
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