| ⇦ | 
| ⇨ |
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 de-Broglie wavelength of an electron moving with a velocity 1.5×10⁸ ms⁻¹ is equal
- A wire mesh consisting of very small squares is viewed at a distance
- In the Young’s double slit experiment, the intensity of light at a point on the screen
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- A vibration magnetometer placed in magnetic meridian has a small bar magnet
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 de-Broglie wavelength of an electron moving with a velocity 1.5×10⁸ ms⁻¹ is equal
- A wire mesh consisting of very small squares is viewed at a distance
- In the Young’s double slit experiment, the intensity of light at a point on the screen
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- A vibration magnetometer placed in magnetic meridian has a small bar magnet
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