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The mass of a lift is 2000kg . When the ...

The mass of a lift is `2000kg` . When the tensioon in the supporting cable is `28000N` , then its acceleration is.

A

`30 ms^(-2)` downwards

B

`4 ms^(-2)` upwards

C

`4 ms^(-2)` downwards

D

`14 ms^(-2)` upwards

Text Solution

Verified by Experts

The correct Answer is:
B
`SigmaF=ma`
`rArr" "T-mg=ma`
`a=(T-mg)/(m)=4m//s^(2)`
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