Question

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A body hangs from a spring balance supported from the roof of an elevator: If the elevat
has an upward acceleration of 2.45 m/s, and the balance reads 50N. What is the true
weight of the body (g=9,8 m/s)
1) 30N
2) 40N
3) 50N
4) 29N​

Answer 1

Answer:

When the lift moves upward with an acceleration, then the apparent weigth is <br>

<br> Here

<br>

<br> (b) Again if a is upward acceleration, then <br>

<br>

<br> i.e. lift has downward with acceleration

. <br> (c ) when the elevator cable breaks, the lift falls freely with acceleration t. <br> Therefore, apparent weight

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