A person is standing on a weighing machine placed near a door. What would be the effect on the reading of the machine if a person pulls downwards ?

A person is standing on a weighing machine placed near a door. What would be the effect on the reading of the machine if a person presses the edge of the door upward?

A woman weighing 50 kgf stands on a weighing machine placed in lift. What will be the reading of the machine, when the lift is (i) moving upwards with a uniform velocity of 5ms^(-1) and (ii) moving downwards with a uniform acceleration of 1ms^(-2) ? Take g = 10 ms^(-2) .

A boy of mass 50kg is standing on a weihing machine placed on the floor of a lift. The machine reads his weight in newtons. The reading of the machine if the lift is moving upwards with uniform speed of 10ms^(-1) .

A boy is standing on a weighing machine placed on a horizontal platform. The reading of weighing machine is 70 kg. Using a suitable mechanism the platform is made to execute harmonic vibrations with a frequency of 1 vibration per second. Calculate the maximum and minimum force exerted on the boy if the amplitude of vibration of platform is 6 cm.

Find out the reading of the weighing machine in the following cases.

A man is standing on a weighing machine kept on the floor of an elevator. The ratio of measured weight of the man when elevator is at rest and when it is moving with downward acceleration a is 3 : 2. The value of a is :

A man is standing on a weighing machine placed in a lift. When stationary his weight is recorded as 40 kg . If the lift is accelerated upwards with an acceleration of 2m//s^(2) , then the weight recorded in the machine will be (g=10m//s^(2))

A person stands on a weighing machine kept on the floor of an elevator .When the elevator is at rest then the apparent weight of the person is

A person is standing on weighing machine and is slowly taken from the surface of earth to the surface of mars.Given that the value of g on earth is 10 ms^-2 and that on Mars is 4 ms^-2 .Draw graph of weight vs distance from earth's surface

An elevator is accelerating upwards with an acceleration of 6m//s^(2) inside it a person of mass 50 kg is standing on a weighing machine which is kept on an inclined plane having angle of inclination 60^(@) The reading of the weighing machine is: