Question

what happens to the speed of the ball as the mass of the bat decreases ?
changes in bats mass:
bat mass (g) speed of ball after contact (mph)
570 68
710 73
850 76
990 78
1140 80
changes in bats speed:
bat swing speed (mph) speed of ball after contact (mph)
20 60
27 68
34 76
41 84
48 92
the speed of the ball decreases.
the speed of the ball stays the same.
the speed of the ball increases.
the speed of the ball increases and then decreases.
the data table below compares the speed of the baseball after contact when the bats mass and speed is changed. use this information to answer questions 1 - 3.
what has the greatest effect on the amount of kinetic energy a moving

Explanation:

Looking at the "Changes in bat's mass" table, as the bat mass decreases (e.g., from 1140g to 570g), the speed of the ball after contact decreases (e.g., from 80 mph to 68 mph). This shows an inverse - relationship between bat mass and ball speed (when bat mass goes down, ball speed goes down).

Answer:

The speed of the ball decreases.