The work done againsta gravity in taking 10 kg mass at 1m height in 1 sec will be

The work done against gravity in taking 10 kg mass at 1m height in 1 sec will be

The work done in lifting 1 kg mass to a height of 9.8 m is about

The work done in lifting a mass of 1 kg to a height of 9.8 m is

Work is required to lift a body through a height from the ground, Calculate the work done in lifting a body of mass 10 kg to a height of 10m above the ground.

The work done by a person in carrying a box of mass 10 kg through a vertical height of 10 m is 4900 J. The mass of the person is -