Advertisements
Advertisements
प्रश्न
A body is acted upon by two forces of magnitude F, but in opposite directions. State the effect of the force if the two forces act at two different points of the body at a separation r.
उत्तर
The forces tend to rotate the body about the midpoint between two forces: Moment of forces = Fr. Resultant force = 0.
संबंधित प्रश्न
State the effects of a force applied on a non-rigid and a rigid body. How does the effect of the force differ in the two cases?
Complete the following sentence:
Mass X change in velocity = ............x time interval.
Explain what is understood by the following statement 1 kilogram-force (kgf) - 9.8 newton
Define 1 Dyne.
A ball was set rolling on a large table. If its ______ is to be changed, a ______ will have to be applied on it.
The force of friction always acts ______ the motion.
Moon or Cloud?
Observe the moon on a windy night with a fair bit of cloud cover in the sky. As the cloud passes in front of the moon you sometimes think it is the moon which is moving behind the cloud. What would you think if you were to observe a tree at the same time?
Two identical bullets are fired one by a light rifle and another by a heavy rifle with the same force. Which rifle will hurt the shoulder more and why?
Define force. Mention its SI unit.
Can you lift or push a book lying on a table without touching it?
