Recent content by afifbaha

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    Solving problems involving forces

    Ya that's what i was figuring out. Anybody else could help?
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    Solving problems involving forces

    I knew that N is Newtons. What i was saying was for F in F=ma, the F is net force which means it has to be subtracted with any other forces. In this case it has to be subtracted with the opposing force right? That is what i meant.
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    Solving problems involving forces

    So can i substitute F on the second equation with the value of N given in the question. It says that it is an opposing force. So i have to do F-N = m(v-u)/t. Right? Then i will have 2 unknowns F and V. What now?
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    Solving problems involving forces

    Ive subtituted all the values given in the formula. From then, i couldn't figure out the next step
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    Solving problems involving forces

    Homework Statement A loaded barge has a mass of 1.5exponent6 kg and its traveling at 3 metres per second. If a tugboat applies an opposing force of 1.2exponent4 N for 10s What is it final velocity? How long does it take to stop Homework Equations F = ma F = m(v-u)/tThe Attempt at a Solution
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    Finding Magnitudes of Forces in Similar Triangles

    Wh What about the length of 2nd force? The magnitude is yet to be calculated
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    Finding Magnitudes of Forces in Similar Triangles

    How can i draw to scale if i don't know the 2nd force?
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    Finding Magnitudes of Forces in Similar Triangles

    Ok this is my diagram. Then what?
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    Finding Magnitudes of Forces in Similar Triangles

    I have no idea how to do it
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    Finding Magnitudes of Forces in Similar Triangles

    An upward force of magnitude 30N is combined with a second force F which makes an angle of 10degree with the horizontal. The resultant makes an anglre of 40degree with the horizontal. a. Determine the magnitude of the second force b. Determine the magnitude of the resultant