Question

Which of the following real-life examples relies on static friction to function correctly?

Options

• A satellite orbiting the Earth

• An ice skater gliding across the ice

• A boat moving through water

• A car's tyres gripping the road to accelerate from rest

Answer 1

A car's tyres gripping the road to accelerate from rest

Explanation:

For the car to accelerate without the wheels spinning, the point of contact between the tyre and road must not slip, which requires static friction.