2. Utilizing Newton’s second law to derive the "Impulse-Momentum" formula [Ft = (mv)2 – (mv)1], explain why a) the sequence and timing of the body’s lever segments are important aspects of proper bat swinging; b) the total body strength and power of an athlete effects bat grip and bat selection and, ultimately, the linear momentum of the bat.
*you need to define t as time interval during which force is being exerted. Dt would be better. Also identify mv as momentum of object on which force is exerted.