Question

6. The work done by a goal keeper catches the ball coming towards him by applying a force is
a) positive
b) negative
c) zero
d) infinity​

Answer 1

To catch a ball, the fielder has to stop the ball. This means, force is applied against the motion of the ball. So, between the fielder applies force on the ball and the ball comes to rest, the ball moves in the direction opposite to the direction of force. Thus work is negative.

b) negative

Answer 2

Hey i think answer is zero thanks for the point