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Which surface would exert the least frictional force on your feet as you walk?
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∙ 16y ago
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How do machines make work easier?
A machine makes work easier by changing at least one of three factors. A machine may change the amount of force you exert, the distance over which you exert your force, or direction in which you exert your force.
What is the least frictional force?
That is a poorly phrased question. Friction is a force resulting from molecular interactions between substances. It is numerically calculated using the formula F=μmg, where F is the force from friction, μ is the coefficient of friction, m is the mass of the object friction is affecting, and g is acceleration due to gravity. Thus the least frictional force possible approaches zero as either the coefficient approaches zero (think very smooth surface-like ice) or as the mass approaches zero.
What types of forces are there in physics?
There are at least four types of forces in physics. They include applied force, gravitational force, normal force, and frictional force. Other types of force can also include spring force, tension force, and air resistance force.
What force type of forces are there in physics?
There are at least four types of forces in physics. They include applied force, gravitational force, normal force, and frictional force. Other types of force can also include spring force, tension force, and air resistance force.
How much friction acts on the furniture when it is at rest on a horizontal surface?
No friction at all. There are two forces: the Downward force called WEIGHT and the Upward force called the NORMAL FORCE. Since these two are in opposite directions and are, by definition, equal, they cancel out and there is no net force. Because there is no force, there is no acceleration, and in this case where there is no initial movement, the object stays at rest. if there were a frictional force between the object and the surface, it would be in a direction with at least some horizontal component, but since there would be no other force to cancel this out, the object would be accelerating in some direction. It is defined as "at rest", so there is no frictional force. If you were to push the furniture across the surface, then there WOULD be friction to resist the force you were applying. EDIT: This answer is only partly correct. The force of friction is zero if the furniture is at rest. However, if there is a force acting on the furniture that is less than the maximum static friction force (so the furniture still doesn't go anywhere), the force of friction equals the other force.
Why can you jump higher on the moon than the earth?
When you jump, you exert a force greater than the force of gravity to achieve a net positive upward acceleration - at least until your feet leave the ground and you quit exerting force. The net upward force is Fnet = (force you push off with) - (force of gravity) Because the moon has less mass than the earth, the force of gravity is less. As a result, the force you exert to jump on earth would give a higher net upward acceleration on the moon and allow you jump higher.
Why can you jump higher on the moon?
When you jump, you exert a force greater than the force of gravity to achieve a net positive upward acceleration - at least until your feet leave the ground and you quit exerting force. The net upward force is Fnet = (force you push off with) - (force of gravity) Because the moon has less mass than the earth, the force of gravity is less. As a result, the force you exert to jump on earth would give a higher net upward acceleration on the moon and allow you jump higher.
How the massive bodies can exert gravitational force?
We are always asked questions about one body exerting gravitational force,and we must emphasize again: That's the least helpful way to think about it.Gravitational force always involves two bodies. The strength of the force dependson the mass of both bodies, the force acts along the line between the centers ofboth bodies, and both bodies feel gravitational forces with the same strength.Whatever force the earth 'exerts' on you that draws you toward it, you exert thesame force on the earth that draws the earth toward you.
You exert a force of 75 newtons on a rock. You push and you push, but you can’t budge it. You are exhausted! How much work did you perform?
Unfortunately, 0. The rock has 0 displacement, so despite force being exerted no work was done (at least in physics terms).
When a body is negatively charge by rubbing it means?
The body is negatively charged by friction means that when a body is moving, due to frictional force the body is gaining negative charges from the contact side/or from the surface on which it is being dragged.
What is the difference between buoyancy and water surface tension?
Buoyancy is the force exerted by the weight of water displaced by an object that is at least partially submerged in the water. Surface tension a force of attraction exerted between water molecules at the waters surface interface. Something can not become submerged in the water until this surface tension is broken. Surface tension is a very weak force and can be overcome physically or by changing the chemistry at the surface (adding a wetting agent).
On what planet does the Sun exert the most gravitational force?
Your teacher has a sense of humor, or you misread the question.... And the answer is... on his feet. Since the force of gravity varies as the inverse square of the distance between bodies, the answer must be on his feet. It was the closest part of his body to the earth. Likewise, his head had the least force exerted on it.
