Advertisements
Advertisements
प्रश्न
Explain the motion of a planet around the sun in a circular path.
Advertisements
उत्तर
A planet moves around the sun in a nearly circular path for which the gravitational force of attraction on the planet by the sun provides the necessary centripetal force required for circular motion.
संबंधित प्रश्न
An effort is applied on the bigger wheel of a gear having 32 teeth. It is used to turn a wheel of 8 teeth. Where it is used.
In a door, handle is provided ......... from the hinges.
State the effect of force F in of the following diagram.
The moment of a force of 25 N about a point is 2.5 N m. Find the perpendicular distance of force from that point.
State the relationship between force, mass and acceleration. Draw graphs showing the relationship between Acceleration and force for a constant mass.
A, B and C are the three forces each of magnitude 4 N acting in the plane of the paper as shown in Figure. The point O lies in the same plane.
- Which force has the least moment about O? Give a reason.
- Which force has the greatest moment about O? Give a reason.
- Name the forces producing
(a) Clockwise
(b) anticlockwise moments. - What is the resultant torque about the point O?
(i) What do you understand by the term couple of forces?
(ii) Calculate the moment of a couple shown in fig.
A meter scale is provided at 10 cm mark and is balanced by suspending 400 g from 0 cm mark (fig.). Calculate the mass of meter scale.
How does the distance of separation between two bodies affect the magnitude of the non-contact force between them?
The diagram shows wheel O pivoted at point A. Three equal forces F1, F2 and F3 act at point B on the wheel.
- Which force will produce maximum moment about A?
- Give a reason for your answer in (a).
