| ⇦ | 
| ⇨ |
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 bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists
- A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
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 bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists
- A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
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