Question

The mass of spherical cannonballs is directly proportional to the cube of their diameter. A cannon ball of diameter 100 cm must be decreased to a diameter of y cm if its mass is to be halved. Find y.​

oh
Looks like its my la st 2 min here
:'(
Mr. deepak is sacring me​

Answer 1

Answer:

you are scaring mr Deepak in 2 min

Explanation:

you are scaring mr Deepak becaue joke in 2 min

Answer 2

Explanation:

Correct option is

A

910m

Given, diameter of spherical ball(d)=1cm=0.01m

Radius of spherical ball(r)=20.01m

Density of spherical ball(ρ)=5×103kg m−3

Density of liquid(σ)=3×103kgm−3

Coefficient of viscosity (η)=0.1Nsm−2

We know that,

v=92ηgr2(ϕ−σ)

v=9×(2)2×0.12×10×(0.01)2×(5×103−3×103)

v=910ms−1

Now, S=vt

S=910×1

S=910m