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 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 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 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 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.

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 perso is standing on a weighing machine placed on the floor of an elevator. The elevator starts going up with some acceleratiion, moves with uniform velocity for a while and finally decelerates to stop. The maximum and the minimum weights recorded are 72 kg and 60 kg. Assuming that the magnitudes of the acceleration and the decelaration are teh same., find a. the true weight of the person and b. the magnitude of the acceleration. Take g=9.9 m/s^2 .

If someone receives a blow on the back of neck , what would be the effect on the person's CNS ?

A body stands on a weighing machine inside a lift. When the lift is going down wit acceleration g//4 , the machine shows a reading 30 kg. When the lift goes upwards with acceleration g//4 , the reading would be