⇦ | ⇨ |
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 cricketer catches a ball of mass 150 g in 0.1 sec moving with speed 20 m/s
- A solid cylinder of mass M and radius R rolls without slipping down and inclined plane
- A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge
- A current is flowing through resistance. A potential difference of 120 V
- Which of the following is or the property of a cathode ray
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 cricketer catches a ball of mass 150 g in 0.1 sec moving with speed 20 m/s
- A solid cylinder of mass M and radius R rolls without slipping down and inclined plane
- A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge
- A current is flowing through resistance. A potential difference of 120 V
- Which of the following is or the property of a cathode ray
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