Two astronauts, one of mass 64 kgkg and the other 86 kgkg , are initially at rest together in outer space. They then push each other apart. Part A How far apart are they when the lighter astronaut has moved 10 mm

Given :

Two astronauts, one of mass 64 kg and the other 86 kg , are initially at rest together in outer space.

To Find :

How far apart are they when the lighter astronaut has moved 10 mm.

Solution :

Since, there is no force in space.

So, applying conservation of momentum :

We know, distance travelled by smaller astronaut is :

For bigger astronaut distance travelled :

Therefore, they are ( 10 + 7.44 ) = 17.44 mm apart from each others.

Hence, this is the required solution.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.