Answer:
The mass m is 0.332 kg or 332 gm
Explanation:
Given
The platform is rotating with angular speed , [tex]\omega =8.5\, \frac{rad}{sec}[/tex]
Mass m is moving on platform in a circle with radius , [tex]r=0.20\, m[/tex]
Force sensor reading to which spring is attached , [tex]F=4.8\, N[/tex]
Now for the mass m to move in circle the required centripetal force is given by [tex]F=m\omega ^{2}r[/tex]
=>[tex]4.8=m\times 8.5 ^{2}\times 0.20[/tex]
[tex]=>m=0.332\, kg[/tex]
Thus the mass m is 0.332 kg or 332 gm
