Give reasons for the following:

(a) It is difficult to balance our body, when we accidentally step on a peel of a banana.

(b) Pieces of bursting cracker fall in all possible directions.

(c) A glass pane of a window is shattered, when a flying pebble hits it.

(d) It is easier to stop a tennis ball than a cricket ball moving at the same speed.

(e) Javelin thrower is marked foul, if an athlete crosses over the line marked for the throw. Athletes often fail to stop themselves before the line.