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.
APPEARS IN
संबंधित प्रश्न
To obtain a given moment of force for turning a body, the force needed can be decreased by
A spanner of length 10 cm is used to open a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.
What are contact forces? Give two Example
A spanner (or wrench) has a long handle. Why?
Classify the following amongst contact and non-contact forces.
magnetic force
Define couple.
Calculate the resultant moment of forces about O and state its direction in fig.
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).
