| ⇦ | 
| ⇨ |
The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
Options
(a) 4ms⁻² upwards
(b) 4 ms⁻² downwards
(c) 14 ms⁻² upwards
(d) 30 ms⁻² downwards
Correct Answer:
4ms⁻² upwards
Explanation:
Net force, F = T – mg
ma = T – mg
2000a = 28000 – 20000 = 8000
a = 8000 / 2000 = 4 ms⁻² upwards
Related Questions: - The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element Y
- A particle executing SHM with amplitude of 0.1 m. At a certain instant,
- A body initially at rest is moving with uniform acceleration a m/s²
- Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial.
- Dimensions of Torque are
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element Y
- A particle executing SHM with amplitude of 0.1 m. At a certain instant,
- A body initially at rest is moving with uniform acceleration a m/s²
- Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial.
- Dimensions of Torque are
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply