Maths Vectors Question A LevelWatch
- Study Helper
Well picture what the scenario is and you will notice that the three things given to you is Force, mass and the vector of acceleration. So my first instinct is to use F=ma. I know my F to be 10 and I know my mass to be 2. So now I have 10=2a. Now how do I find my a? Well I have the acceleration in the i component, and I have the acceleration in the j component. Here we use the Pythagoras theorem to calculate our resultant vector for acceleration which equals to root((3(3t-5)^2)+(4^2)). Equate this to the 10=2a part and you have an equation to find T. This should be enough to finish the question off, but if you still dont understand it just @ me and I'll try to explain it in a different way
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