Question

two metal spheres of mass 100 gram and 200 gram are allowed to fall down simultaniously from the same height .which one reach the ground first ? justify your answer​

Answer 1

Answer:

Both reach at the same time

Explanation:

The acceleration produced by the gravitational force is same for the both the bodies.So the both bodies will travel the same distance in the same time interval

Answer 2

Answer:

we know that by Newtons equation of gravitational force F=G Mm/ R² where

G= universal gravitational force constant

M=mass of the earth

m= mass of the object

R= radius of the earth

This equation give the force between earth and the object anywhere it may be of any size .

And a=F/m , a= GMm/R²m

Which simplified a=GM/R²

Hence accelation of the object doesn't depend on it mass .

Hence if two masses of 50 kg and 500kg are dropped from the same height they will have same acceleration hence they will reach the ground in same time .

The thing here to note is that the Force F is not the same on two bodies but the acceleration is same .

Hope it helps u...