Question

ok thats good adu ajj tum leaderboard pai bhi ho na
sure saina
myself sehaj from punjab class 8

Answer 1

Answer:

Aaj me 1sr pe aajaunga agar kuch pgl ne multi ans nhi diye to !

Explanation:

a) A Sharpe knife than a blunt knife because the area with which the knife gets it contact with the object to be cut is way lesser in a sharp knife. Due to this the pressure applied increses and the thus cuts better than a blunt knife

• b) The tip of a sewing needle is Sharpe so that it's able to pierce through easily without a greater effort. Sharper something is, the lesser would be the area of contact and so higher the pressure

c) Army tanks are very heavy vehicle so if they have a narrow belt then due to the high weight it would go into the soil and so as the belts have a higher area of contact the pressure reduces thus avoiding this situation.