A baseball pitcher is attempting to strike out a batter and they throw their best fast ball at 40m/s. The distance between the pitchers mound and the center of home plate is 17.5m. The batter swings the bat at an average of 12 rad/s just 0.3s after the pitcher releases the ball and the angular displacement of the bat from the batters shoulder to the hitting position directly over the place is 1.65 rads. Will the bat strike the ball, or will the batter have swung to early or too late

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?