Q.

An elevator (mass 1000 kg) is accelerating upwards with acceleration 1ms−2.  Find the tension in the rope. (Take g=9⋅8m/s2 )

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a

980 N

b

10800 N

c

10980 N

d

8800 N

answer is B.

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Detailed Solution

Considering the forces :T−Mg=Ma⇒T−1000g=(1000)(1)⇒T=1000+(1000)(9.8)⇒T=10,800N
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