gracie swings her bat at a softball exerting a force on the ball for .75 seconds so it experiences an impulse of 93.75 n s. how much force did gracie exert?​

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units