| ⇦ | 
| ⇨ |
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 voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain
- A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas
- A projectile is thrown in the upward direction making an angle of 60°with the horizontal
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
- Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies
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 voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain
- A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas
- A projectile is thrown in the upward direction making an angle of 60°with the horizontal
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
- Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies
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