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`        A lift of mass 100 kg starts moving from rests in the upward direction. Fig. shows the variation if speed of the lift T¬1, T2 and T3 stand for tension in the rope form zero to two seconds, two to six seconds, six to seven seconds respectively then:-`
3 years ago

```							For each interval of time,the slope is: 2, 0 and -4 respectively.And the eqn. of motion is:T =m(g+a) => 100*(g +a)For first interval of time we have a = 2 m/s^2Hence T1 = 100*12 = 1200 NT2 = 100*g => 1000 NT3 = 100*(g -4) => 600 NRatio of the Tensions are:=> 6:5:3
```
3 years ago
```							answer is 6:5:7for any other query plz contact........AND ALSO CHECK OUR COURSES ON ASKIITIANS.COMHOPE YOU WILL SEND MORE QUESTIONS
```
3 years ago
```							For T1T1=m(g+a)=100(10+2)=1200NFor T2 acc is zero because velocity is constantT2=m(g+0)=100(10+0)=1000NFor T3 the lift is retarding therefore acc is -4T3=m(g-4)=100(10-4)=600Therefore the ratio of t1:t2:t3 is 6:5:3
```
2 years ago
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