Question

Define drag. Mention three factors affecting drag.
Which shape can overcome drag?​

Answer 1

Drag is influenced by other factors including shape, texture, viscosity (which results in viscous drag or skin friction ), compressibility, lift (which causes induced drag ), boundary layer separation, and so on.

Shape has a very large effect on the amount of drag produced. Comparing the flat plate and the prism, and the sphere and the bullet, we see that the downstream shape can be modified to reduce drag.

Hope this help....

Here, you have posted 3 question....

So, first 2 answer is in 1st para.....

and last question answer in last para....