a 3.0 kg mas hangs from a newton scale that is attached to theroof of an elevato

Question

a 3.0 kg mas hangs from a newton scale that is attached to theroof of an elevator. what does the scale read while the elevator ismoving upwards at a speed of 5.0 m/s and slowing at a rate of 2.0m/s2? (note : when you solve your answer should be T =23.4N). a 3.0 kg mas hangs from a newton scale that is attached to theroof of an elevator. what does the scale read while the elevator ismoving upwards at a speed of 5.0 m/s and slowing at a rate of 2.0m/s2? (note : when you solve your answer should be T =23.4N).

Explanation / Answer

mass m = 3 kg reading when it moves with constant speed v = 5 m / s inupward direction   is = mg = 3 * 9.8 = 29.4N reading when it slowin at a rate a = 2 m / s ^ 2 is = m( g - a) = 3 ( 9.8 - 2 ) = 3 * 7.8 = 23.4 N

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