Question

We know that forces arise due to some mutual interaction between two entities and their interaction

effects can come into play through a “direct contact” or even without a "direct contact". A special type of a

“direct contact” force has the general effect of slowing down moving objects. Nature has taken special care to

minimize the slowing down effect of this force on birds and fishes who have to move through fluids a lot.

Humans have also used natural observations to design their special purpose “fast moving objects” like the

racing cars. Such objects are given special shapes.

(a) Give any two examples of 'contact force'.

(b) "Magnetic force is a non-contact force". Justify the statement.​

Answer 1

Explanation:

We know that forces arise due to some mutual interaction between two entities and their interaction efforts can come into play through a” direct contact” or even. without a “direct contact”. A special type of a “direct contact” force has the. general effort of slowing down moving objects.