Question

If a 1.50 kg mass revolves at the end of a string 0.50 m long, and its tangential speed is 6.0 m/s, calculate the centripetal force.

Answer 1

Answer:

$108\ N$

Explanation:

Mass of object, $m=1.50\ kg.$

Length of string, $r=0.50\ m.$

Tangential speed, $v_t=6.0\ m/s.$

Now, centripetal force F of a object moving in given radius r and mass m moving with velocity v.

Here , object moves along the ends of string. Therefore, radius is equal to length of string.

$F=\dfrac{m \times v_t^2}{r}.$

Putting values of m,v and r in above equation.

We get, $F=\dfrac{1.50\times (6.0)^2}{0.50} \ N=108 \ N.$

Hence, this is the required solution.

Answer 2

You should get about 110 for an answer