Homework Help: physics

Posted by Ellen on Thursday, October 9, 2008 at 4:40pm.

A pendulum consists of an object of mass 1.07 kg that hangs at the end of a massless bar, a distance 1.14 m from the pivot point. Calculate the magnitude of the torque due to gravity about the pivot point if the bar makes an angle of 22° with the vertical.

physics - bobpursley, Thursday, October 9, 2008 at 4:51pm
the weight will be mgCos22 in the direction perpendicular to the bar.

So torque will be weightpendulum*cos22*1.14
physics - Vishnu, Thursday, October 9, 2008 at 5:13pm
will the weight be in kg or grams?
physics - bobpursley, Thursday, October 9, 2008 at 5:31pm
It does not matter IF you put your units on the problem. However, if your weight is in Newtons, you better use kg as masses.

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