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user 7232
Applies to questions of primarily educational value - not only questions that arise from actual homework assignments, but any question where it is preferable to guide the asker to the answer rather than giving it away outright. Please READ THE GUIDANCE IN META before asking homework-like questions.
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Work done in projectile motion
A projectile is shot at some inclination to the ground. It falls at another point having R distance from the initial point on the ground. Is there any work done?
If initial velocity vector is $(u\cos …
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How to find speed from Newton's law?
Your $ T=m_Aa $ is wrong.
It's $ T - f= m_Aa $.
Because Tension due to $ m_B $ is pulling it forward and friction is trying to resist that force.
Using $v^2 = u^2 + 2as$ for calculating veloci …
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