A 0.3 kg ball is attached to a string that is 50 cm in length, and completes 2 circles every second. Find the tension required to whirl the ball with the given constraints and also find the angle.

Question

lastdaywork · Answer

-A component of Tension will provide centripetal acceleration
-Another component will balance the weight of the ball

This ^^ will give you two equations with two unknown variables (namely T and θ)
I think you can do the rest :)

anonymous · Answer

So, you are creating a horizontal circle by whirling the ball?
What is the centripetal force?
What is the gravitational force?
The tension must supply the vector addition of thee two.