Question

If the earth mass and radius both suddenly doubled what would be the acceleration of gravity

Answer 1

hey, mate here is ur sol.

$we \: know \: that \: \: g = \alpha m \div r {}^{2} ......equation \: 1 \\ now \: when \: m = 2m \: and \: r = 2 \: \: \: then \: \\ g1 = \alpha 2m \div 4r {}^{2} .......equation \: 2 \: \\ now \: dividing \: both \: th e \: equations \\ g \div g1 = 2 \\ g1 = g \div 2 \\ which \: means \: acc \: due \: to \: gravity \: halves$

Answer 2

Answer:

Explanation:

When an object falls freely towards the ground, its potential energy decreases and kinetic energy increases.

As the object touches the ground, all its potential energy gets converted into kinetic energy.

As the object hits the hard ground, all its kinetic energy gets converted into heat energy and sound energy.

It can also deform the ground depending upon the nature of the ground and the amount of kinetic energy possessed by the object.