Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 2 (Q.No. 37)
37.
Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.
Discussion:
4 comments Page 1 of 1.
Tiwari Rohan said:
6 years ago
For lift moving upwards with acc a: Equation is - T-mg = ma so T = m(g+a).
For lif moving downwards with acc a: Equation is - mg-T = ma so T = m(g-a).
So T is more in upwards.
For lif moving downwards with acc a: Equation is - mg-T = ma so T = m(g-a).
So T is more in upwards.
(1)
Sukhdeep Singh said:
7 years ago
In which direction, tension force acts?
Please explain me.
Please explain me.
AKHIL said:
9 years ago
While the lift is moving upward it acts against the gravitational force so the tension is more.
(2)
Paresh said:
1 decade ago
If the lift moves down, then mg is greater than tension as acceleration will be downwards, so answer is A.
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