physics 41

 

15. You are holding a 6-kg dumbbell straight out at arm’s length. Assuming your arm is 0.70 m long, what torque is the dumbbell exerting on your shoulder?

 

 

 

16. A beam is balanced on a stand. If you place a 50-kg mass on one side at a distance of 2.0 m from the center, how far from the center would you place a 25-kg mass on the other side so that the system balances? 

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