- 1(current)
Q. No.A car is driven by an engine that delivers constant power (except possibly at the initial instant). If it starts from rest, its displacement varies with time \((t)\) as:
1. \(t\)
2. \(\sqrt t\)
3. \(\frac{1}{\sqrt t}\)
4. \(t\sqrt t\)
1. \(t\)
2. \(\sqrt t\)
3. \(\frac{1}{\sqrt t}\)
4. \(t\sqrt t\)
Subtopic: Power |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
An elevator can carry a maximum load of \(1800\) kg (elevator + passengers) is moving up with a constant speed of \(2\) m/s. The frictional force opposing the motion is \(4000\) N. The minimum power delivered by the motor to the elevator is:
1. \(59000\) W
2. \(44000\) W
3. \(11000\) W
4. \(22000\) W
Subtopic: Power |
74%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
A particle moves with a velocity \((5\hat i-3\hat j+6\hat k)\) ms–1 horizontally under the action of a constant force \((10\hat i+10\hat j+20\hat k)\) N. The instantaneous power supplied to the particle is:
| 1. | \(200\) W | 2. | zero |
| 3. | \(100\) W | 4. | \(140\) W |
Subtopic: Power |
77%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.