A boy whirls a 30g conker around his head in a circle at a speed of 2.2ms−1, using a taut inextensible string. How much work is done on the conker by the tension in the string?
A boy whirls a 30g conker around his head in a circle at a speed of 2.2ms−1, using a taut inextensible string. How much work is done on the conker by the tension in the string?