Question

sportsmens use shoes with spikes,because it
1.increases the friction between shoes and ground
2.decreases the friction between ground and shoes
3.help to slip

Answer 1

1.) because it increases the friction with ground.

The spikes of the shoes get inserted into the play field, thus increasing friction for players so that they might not slip.
Thus by using shoes having spikes the frictional force increases and hence the person is able to perform at his optimum level.

Answer 2

Hello manish!

Sportsmen use shoes with spikes so that the shoes give a better grip while running and won't slip. The spikes increase the friction between the shoe and the ground. When the frictional force is more then there is very less chance of slipping down. So when you wear the shoes with spikes you can run better as you don't slip and it also helps in proper application of muscular force.