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प्रश्न
How is force related to the momentum of a body?
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उत्तर
Force is equal to the rate of change of momentum.
संबंधित प्रश्न
Define Newton (the S.I unit of force)
How can you feel a force of 1 N?
Two balls of masses in ratio 1 : 2 are dropped from the same height find
a) the ratio between their velocities when they strike the ground and
b) the ration if the forces acting on them during motion.
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.
Define an Inclined plane.
A man can open a nut by applying a force of 150 N by using a lever handle of length 0.4 m. What should be the length of the handle if he is able to open it by applying a force of 60 N?
How do you define force? What are the forces acting on a man standing in a lift? If the lift moves down with an acceleration of 2 ms−2, what is the net force on the man if his mass is 50 kg?
______ has to be applied to change the ______ of a ______ object.
(moving, direction, force)
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?
Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?
