Question

WILL BE MARKING AS BRAINLIEST
If two objects collide,one stationary and other with enormous speed,how to find the mass of the stationary body.
Given: the mass of the moving body,speed of the moving body,and density of colliding body.

Answer 1

Answer:

Explanation:

Law of conservation of momentum,

m1u1 + m2u2 = m1v1 + m2v2.

( Here , we have considered perfectly elastic collision)

Now , let initially m1 be stationary.

So, u1 = 0

→m2u2= m1v1+m2v2

→m2(u2-v2) = m1v1

Now we know that ,

Density = Mass/Volume

And Volume = 4/3×π×r³

→m2 = density × 4/3×π×r³

Let density = p

→→[p×4/3×πr³(u2-v2)] / v1 = m1