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प्रश्न
Force acting on a given area is called pressure.
विकल्प
True
False
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उत्तर
Force acting on a given area is called pressure- true.
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संबंधित प्रश्न
A ball is hanging by a thread from the ceiling of the roof. Draw a neat labelled diagram showing the forces acting on the ball and the string
Give one example in the given cases:-
A force changes the size of a body
Which of the following is not the force at a distance?
A body of mass 1 kg is thrown vertically up with an initial speed of 5 m s-1. What is the magnitude and direction of force due to gravity acting on the body when it is at its highest point? Take G = 9.8 n kg-1
A uniform car of mass 500g travels with a uniform velocity of 25 ms-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s calculate
1) the retardation
2) the distance which the car travels after the brakes are applied
3) The force exerted by the brakes.
Define contact forces.
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?
Give two examples to verify that a force changes the shape of a body.
Does the palm apply any force on the ball, when we place our palm in front of a moving ball?
Briefly explain how we experience a force in our daily life.
