Question

a mass of 2kg is whirled in a horizontal circle by means of a string at an initial speed 5 r.p.m. keeping the radius constant the tension in the string is doubled. the new speed is nearly..

Answer 1

Tension = Centripetal Force

Centripetal Force = Mass x Velocity^2 / Radius

Mass cannot change and radius is kept constant

So, velocity has to change

Velcoty change =2

Since its Velocity squared answer is √2 times 5 R.P.M

=5√2 R.P.M

If this answer helped you please mark it as brainliest

Answer 2

gobar gas is the only anser