| ⇦ | 
| ⇨ |
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: - A particle of mass M is executing oscillations about the origin on the x-axis.
- 180⁰ phase difference is obtained when light ray is reflected from
- A scooter is going round a circular road of radius 100 m at a speed of 10m/s
- If dimensions of critical velocity of a liquid flowing through a tube are expressed
- A body undergoes no change in volume. Poisson’s ratio is
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
- A particle of mass M is executing oscillations about the origin on the x-axis.
- 180⁰ phase difference is obtained when light ray is reflected from
- A scooter is going round a circular road of radius 100 m at a speed of 10m/s
- If dimensions of critical velocity of a liquid flowing through a tube are expressed
- A body undergoes no change in volume. Poisson’s ratio is
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