A73 kg baseball player jumps straight up to catch a hard-hit ball. if the 140 g ball is moving horizontally at 21 m/s, and the catch is made when the ballplayer is at the highest point of his leap, what is his speed immediately after stopping the ball?

Suppose that f left-parenthesis x right-parenthesis equals startfraction x over 8 endfraction for 3 ⁢ less-than x ⁢ less-than 5. determine the mean and variance of x. round your answers to 4 decimal places. statistical tables and charts collapse question part part 1 upper e left-parenthesis upper x right-parenthesis equals