Yes, ground friction is typically greater than air friction due to the surface contact and interacting molecules, which slows down objects more effectively compared to the sparse air molecules encountered in the atmosphere.
Wind resistance is typically greater near the ground due to surface friction and obstacles that disrupt airflow. As you move higher in the air, wind resistance decreases because the air is less turbulent and obstacles are less frequent, allowing for smoother flow.
The density of air is greater at ground level because of the weight of the air above pressing down. As you go higher in altitude, there is less air above exerting pressure, leading to lower air density at the top of a mountain.
An ice hockey puck has less friction than a ball rolling on the ground because the puck's smooth, flat surface makes contact with the ice, reducing friction. In contrast, a ball rolling on the ground has more points of contact with the rough surface, leading to increased friction that slows it down. Additionally, the presence of air between the ball and the ground can also contribute to more friction.
The two main sources of friction to overcome when walking are air resistance and ground friction. Air resistance creates drag as you move through the air, while ground friction creates resistance between your feet and the surface you are walking on. Both of these forces must be overcome to maintain forward motion while walking.
When a person pushes a door, creating a force greater than the friction on the hinges, causing the door to open. When a car accelerates, the engine exerts a forward force greater than the resistive forces like air resistance and friction. When a book slides off a table due to the force of gravity being stronger than the friction keeping it in place.
There is a greater risk of explosion with dust in the air rather than dust on ground. This due to the fact that dust combusts quickly and air supports combustion while the ground does not.
The wind at the surface of the ground where the molecules are having friction is moving slower than the wind above the surface.
Air resistance. (friction).
Wind resistance is typically greater near the ground due to surface friction and obstacles that disrupt airflow. As you move higher in the air, wind resistance decreases because the air is less turbulent and obstacles are less frequent, allowing for smoother flow.
Cause dust can combust real fast and air supports burning the ground doesn't
The density of air is greater at ground level because of the weight of the air above pressing down. As you go higher in altitude, there is less air above exerting pressure, leading to lower air density at the top of a mountain.
An ice hockey puck has less friction than a ball rolling on the ground because the puck's smooth, flat surface makes contact with the ice, reducing friction. In contrast, a ball rolling on the ground has more points of contact with the rough surface, leading to increased friction that slows it down. Additionally, the presence of air between the ball and the ground can also contribute to more friction.
The main forces acting on the pram will be the force the person pushing the pram exerts on it, the friction against the ground and air resistance. When the pram is speeding up the force the pusher exerts will be larger than the combined force of the air resistance and the friction against the ground. When the pram is moving at a constant speed the forces acting on it will be balanced I.e. pushing force= air resistance+friction. When the pram is slowing down the air resistance and the friction will be greater than the pushing force.
there could be friction inside the motor. there is friction on the wheels of the scooter and the ground. there is air friction when you move on a scooter.
No. Its a form of friction.
The two main sources of friction to overcome when walking are air resistance and ground friction. Air resistance creates drag as you move through the air, while ground friction creates resistance between your feet and the surface you are walking on. Both of these forces must be overcome to maintain forward motion while walking.
When a person pushes a door, creating a force greater than the friction on the hinges, causing the door to open. When a car accelerates, the engine exerts a forward force greater than the resistive forces like air resistance and friction. When a book slides off a table due to the force of gravity being stronger than the friction keeping it in place.