please tell me answer
Answers
Answer:
I'm sorry I don't know sorry
Answer:
1) Friction is a contact force and arises when two objects are in direct contact with each other. ... When we step on a banana peel, the friction force between the feet and the peel decreases and we are not able to move forward and slip.
2) This can be explained by law of conservation of momentum, which says total momentum in a system is conserved.
before the bursting of the cracker the total momentum is Zero. . hence after the burst its momentum needs to be Zero according to
law of conservation of momentum.hence the particles fly off in such a way that each one's momentum is nullified by the one flying off in opposite direction.
3) A glass pane of a window gets shattered when a flying pebble hits it, because the flying pebble is moving with some velocity while the glass pane is at the rest. When it hits the glass pane , it imparts momentum to the pane. Glass is amorphous solid and hence doesn't have cleavage property.