Depending on the situation, friction can be a help or a nuisance. Identify in which of these situations friction is considered helpful.

Walking or Running: When we walk or run, our shoes interact with the surface of the ground. This interaction creates friction which prevents us from slipping or sliding. Without friction, our feet would simply slide out from under us, making locomotion difficult.

Driving: Friction between the tires of a vehicle and the road surface is crucial for driving. It allows the vehicle to grip the road, enabling it to accelerate, decelerate, and turn effectively. Without sufficient friction, a vehicle would skid and be difficult to control.

Writing: When we write with a pen or pencil, friction between the writing instrument and the paper allows the ink or graphite to be transferred onto the paper. Without friction, writing would not be possible.

Braking: When we apply brakes in a vehicle, friction between the brake pads and the wheels slows down the vehicle. This friction is essential for stopping the vehicle safely.

Holding Objects: When we hold or grip an object, friction between our hands and the object prevents the object from slipping out of our hands. Without friction, it would be difficult to hold onto objects.