A $0.2 \textrm{ kg}$ mass is being swung round a circle on a light string of length $60 \textrm{ cm}$. It makes $1.4 \textrm{ revolutions per second}$. Find the centripetal force acting on the mass.
My attempt:
Is the final answer correct ?
2026-03-28 22:37:03.1774737423
Finding centripetal force acting on mass
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The data you have given is:
Frequency($v$)=$1.4$ $Hz$
Mass$=0.2 Kg$
Radius$=0.6m$
Now angular velocity $w$ is given by $2\pi v$ or $w=2\pi v=8.8radians/sec$.
Centripetal force is given by $F_c=mw^2r$ which from the given data is $0.2 * 8.8^2*0.6=9.2928 N$