woleraymond
A body hangs from a spring balance supported from the roof of an elevator. if the elevator has an upward acceleration of 3m/s^2 and the balance reads 50N.What is the true weight of the body...
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Brent0423
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Using newtons seconds law F=m*a you should be able to solve this
Brent0423
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Note: Weight=Force
Brent0423
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W=M*G is the same as F=M*A
woleraymond
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U mean Mass is 50/3? @Brent0423
woleraymond
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@experimentX ANY IDEAS?
experimentX
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f = m(a + g)
woleraymond
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PLS ANY EXPLAINATION WHY IS DAT BECAUSE @experimentX THE ANS U SUGGEST IS NOT IN OPTIONS
woleraymond
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THE OPTIONS ARE 50, 28.3, 38.3 AND 39.8
experimentX
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50 = m(3 + 9.8)
find the mass m
true weight is m x 9.8
experimentX
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or 50/12.8 x 9.8 = 38.2813
woleraymond
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SO ANS IS 38.3
experimentX
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yup
woleraymond
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THANKS @experimentX PLS EXPLAIN WHY WE HAVE TO ADD (A + G)
experimentX
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|dw:1341336173032:dw|
this will increase relative acceleration which will force
experimentX
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*which will increase force.
woleraymond
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HMN...U ARE A GENIUS
experimentX
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No ... not really, just old fool.
woleraymond
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LOL