A ball of mass 0.25 kg attached to the end of a string of length 1.96 m is moving in a horizontal circle. The string will break if the tension is more than 25 N . What is the maximum speed with which the ball can be moved

Explanation

The centripetal force,
`F=(mv^(2))/(r)`
The string will break if `Fge25N`
`v^(2)le(Fr)/(m)`
`rArr" "v^(2)le(25xx1.96)/(0.25)le196`
`therefore` Maximum velocity of the ball, `v_("max")=sqrt(196)=14ms^(-1)`