Question

Identify a situation in which friction works against you.

Answer 1

Ex: When you fall off your bike and scrape your knee

Answer 2

Friction tends to oppose any relative motion between objects, acting at the surfaces in contact. If there is relative motion, the frictional force is the kinetic force of friction. If there is no relative motion, the frictional force is the static force of friction.

Step-by-step explanation: