A pitcher threw a world record baseball at a speed of 46.9 m/s. The mass of the baseball is 0.13 kg. Ignoring the effects of gravity, friction, and air resistance, what would be the impulse needed to hit this baseball? A. N-s

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?

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What kind of simple machine is a catapult?