Laws of Motion-Equilibrium of Concurrent Forces (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 4 - 7 of 7
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 268 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.
Rs. 200.00 or
Question number: 4
» Laws of Motion » Equilibrium of Concurrent Forces
Question
An object is tied to a string and rotated in a vertical radius r. Constant speed is maintained along the trajectory. If , then, is –
(T indicates tension in the string)
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 |
|
| b. | 3 |
|
| c. | 4 |
|
| d. | 2 |
|
Question number: 5
» Laws of Motion » Equilibrium of Concurrent Forces
Question
Figure shows a girder supporting a load of 20, 000 N. The compression force F in newton in the girder is –
A Girder Supporting a Load
In figure a girder supporting a load of 20, 000 N. F is the compression forces.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. | 7500 |
|
| c. |
|
|
| d. |
|
|
Question number: 6
» Laws of Motion » Equilibrium of Concurrent Forces
Appeared in Year: 2014
Question
Consider the system shown below.
System Consist of Two Boxes
In figure two boxes: X of mass 8kg and Y of mass 2 kg is adjacent to each other such that box Y does not slip downward under gravity.
A horizontal force F is applied to a block X of mass 8 kg such that the block Y of mass 2 kg adjacent to it does not slip downwards under gravity. There is no friction between the horizontal plane and the base of the block X. The coefficient of friction between the surfaces of blocks X and Y is 0.5. Take acceleration due to gravity to be 10 ms–2. The minimum value of F is,
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 240N |
|
| b. | 40N |
|
| c. | 200N |
|
| d. | 160N |
|
Question number: 7
» Laws of Motion » Equilibrium of Concurrent Forces
Appeared in Year: 2013
Question
A monkey is accelerating down a string whose breaking strength is one half of his weight. The minimum acceleration of the monkey should be,
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. | Zero |
|
| d. | g |
|