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Physics 21 Online
hallm:

Your family is moving to a new apartment. While lifting a box 83 Joules of work is done to put the box on a truck, you exert an upward force of 75 N for 3 s. How much power is required to do this? (Hint: You only need two of the 3 numbers given!) Power = Work / time Question 11 options: 249 Watts 27.7 Watts 2075 Watts 25 Watts

Shadow:

Don't get distracted by the force value. You only need the time from that setence. Just calculate: \[Power = \frac{ Work }{ Time }\] \[Power = \frac{ 83 J }{ 3s }\]

Shadow:

sentence*

hallm:

ok thank u

Shadow:

No problem

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