- #1
Lord Dark
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Homework Statement
hi guys how are you?? ,, there are 2 MC (Multiple choices question)
1- A 50-N force is the only force on a 2-kg object that starts from rest. When the force has been acting for 2 s the rate at which it is doing work is:(Ans:2500W)
2-A 50-N force is the only force a 2-kg crate that starts from rest. At the instant the object has gone 2m the rate at which the force is doing work is:(Ans:500W)
The Attempt at a Solution
i tried several ways but the problem is i know only 2 equations about power
one is P=W/t and P=Fv ,, in problem 1 there is no distance and in 2 there is no velocity, i didn't understand the questions in the first place(cant imagine it) ,, is the force acting horizontally or vertically ,, can anyone help me please before the exam,,