A mass of 0.1kg is rotated in a vertical circle using a string of length 20cm. When the string makes an angle 30^(@) with the vertical, the speed of the mass is 1.5 ms^(-1). The tangential acceleration of the mass at that instant is

A mass of 0.1kg is rotated in a vertical circle using a string of leng

1.	A mass of 0.1kg is rotated in a vertical circle using a string of length 20cm. When the string makes an angle 30^(@) with the vertical, the speed of the mass is 1.5 ms^(-1). The tangential acceleration of the mass at that instant is
Answer» `4.9 MS^(-2)` `9.8 ms^(-2)` `2.45 ms^(-2)` `19.6 ms^(-2)` ANSWER :A