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Forces of 3.0 N and 4.0 N act at right angles on a block. What should be the mass of the block for the acceleration to be 7 m/s2?

Answer» <html><body><p>:Two <a href="https://interviewquestions.tuteehub.com/tag/forces-16875" style="font-weight:bold;" target="_blank" title="Click to know more about FORCES">FORCES</a> of 3N and <a href="https://interviewquestions.tuteehub.com/tag/4n-319008" style="font-weight:bold;" target="_blank" title="Click to know more about 4N">4N</a> act at right angles on a block.Acceleration of block = 7m/s²We have to find mass of block★ First of all we need to find net force acts on the block. If two forces A and B act at right angles on a <a href="https://interviewquestions.tuteehub.com/tag/body-900196" style="font-weight:bold;" target="_blank" title="Click to know more about BODY">BODY</a> then resultant force R is given byR² = A² + B²By substituting the values,➝ R² = A² + B²➝ R² = 3² + 4²➝ R = √25➝ R = 5N★ As per newton's second law of motion, force is measured as the product of mass and acceleration. <a href="https://interviewquestions.tuteehub.com/tag/f-455800" style="font-weight:bold;" target="_blank" title="Click to know more about F">F</a> = m a➝ F = m a➝ <a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a> = m × 7➝ m = 5/7➝ m = 0.71 kg</p></body></html>


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