1) If the net torque on a system is zero then the net force is necessarily zero
ID: 2239913 • Letter: 1
Question
1) If the net torque on a system is zero then the net force is necessarily zero as well
2) if an object is rotating then the torque acting on that object must be non-zero
3) changing the axis of rotation changes its moment of inertia
4) If two rigid bodies are rotating with the same angular velocity then they have the same rotational kinetic energy
5) If two ridid bodies have teh same angular momentum then they do not necessarily have teh same kinetic energy
6)the pressure at the bottom of a glass filled with water is less than the pressure at the bottom of the same gladd but filled with ethyl alcohol with density less than the density of water
7) The buoyant force on a floating object is equal to its weight
It helps me when theres reasoning behind the answers because I have my own answers and I liked to just compare to make sure.
Explanation / Answer
1) False
2) False
3) False
4) False
5) True
6) True
7) False
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