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| 1. |
A can of paint with a mass of 6 kg hangs from a rope. If the can is to be pulled up to a rooftop with an acceleration of 1 m//s, what must be the tension in the rope ? |
| Answer» Solution :The phrase " constant velocity" automatically means a= 0 and, therefore, `F_(" NET")=0`. In the diagram above, `F_(T)` would need to have the same magnitude as `F_(w)` in order for the can to be moving at a constant velocity. Thus, in this case, `F_(T)=F_(w)=mg=(6)(10)=60 N`. | |