### An accelerating car

You are stopped at a red light in your front-wheel drive car. When the light turns green you accelerate so that there is no slipping between the tires and the road. While accelerating, what direction is the friction force from the road acting on your front tires? Is it static friction or kinetic friction?

1. The force is kinetic friction acting in the travel direction.
2. The force is kinetic friction acting opposite to the travel direction.
3. The force is static friction acting in the travel direction.
4. The force is static friction acting opposite to the travel direction.

While accelerating, what direction is the friction force from the road acting on your rear tires? Is it static friction or kinetic friction?

1. The force is kinetic friction acting in the travel direction.
2. The force is kinetic friction acting opposite to the travel direction.
3. The force is static friction acting in the travel direction.
4. The force is static friction acting opposite to the travel direction.