Refere to the following scenario: Two crates sit on a wooden beam as shown below

Question

Refere to the following scenario: Two crates sit on a wooden beam as shown below .The crates and beam remaine at rest.The beam is supported by a frictionless pivot The crates an- not identical. The magnitude of the torque produced by crate B about the pivot is that of crate A. Greater than Less than Equal to Not enough information to tell. The mass of crate B is the mass of crate A. Greater than Less than Equal to Not enough information to tell. In this situation, what is the direction of the net torque about the pivot? Into the page. Out of the page. Net torque is zero. Insufficient information to tell.

Explanation / Answer

1) C Equal to ( since system is in equilibrium torque due to A and B cancel each other about pivot )

2) B less than ( since torque is same and distance from pivot to B is large so mass of B is less )

3) A into the page ( clock wise rotation )

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