Question

a Boat or an aeroplane has a pointed or tapering front head. why

Answer 1

It's b) to reduce the friction.
So that it can glide easily in air or water.

Answer 2

Answer:

An airplane or a boat has a tapering or pointed front head to reduce the friction of fluid/air. Option (b) is correct.

Explanation:

• When the different layers of a fluid a moving relative to each other, then the friction between the layers is termed fluid friction.
• The fluid friction depends on the object's shape.

If the object is broad, it has more surface area. So, the fluid friction acting on it is more. But, if the object has a streamlined structure, the surface area is less and the value of fluid friction reduces.

So, an airplane or a boat has a tapering or pointed front head to reduce the friction of fluid/air. Option (b) is correct.