Jose Altuve hits a line drive back at Joe Kelly during a game. The baseball travels 18.4 m back to the pitcher’s mound before Kelly can get out of the way, and clocks him while moving at a constant 42.5 m/s. How long did Kelly have to react to the ball before it hit him?

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s