Physics resistance force question (Newton's Laws)

In summary, a 25kg mass with a constant velocity of 5m/s is being pushed horizontally by a 5 N force. The resistance force present in this scenario is also 5 N. This is determined by considering the horizontal forces on the mass and understanding that since it is not accelerating, it cannot have only the 5 N force acting on it. A diagram can be drawn to further illustrate this concept.
  • #1
modis15
5
0
1. Homework Statement
If a 25kg mass has a constant velocity of 5m/s, when pushed horizontally by a 5 N force, what amount of resistance force is present?

2. Homework Equations
F=ma

3. The Attempt at a Solution

I'm pretty sure the velocity is irrelevant, ... I made a diagram but that didn't help much. I'm not sure exactly what it is asking, aka I don't know what resistance force is or how to find it. I'm not sure where to start so any help would be appreciated!
 
Physics news on Phys.org
  • #2
What are the horizontal forces on the mass?
 
  • #3
Just the 5 N right?
 
  • #4
Is the mass accelerating?
 
  • #5
No, it doesn't have any acceleration.
 
  • #6
Therefore it cannot have only the 5n force acting on it because otherwise it will acc.
 
  • #7
Ooohhh, I think I see what you're getting at. The resistance force must be 5 N also, right?
 
Last edited:
  • #8
Correct! Now you ARE thinking.
Physics becomes easy... when you think enough.
Now draw a diagram showing the forces and continue.
 

FAQ: Physics resistance force question (Newton's Laws)

What is Newton's Third Law of Motion?

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This means that when two objects interact, they exert equal and opposite forces on each other.

How does Newton's Second Law of Motion relate to resistance force?

Newton's Second Law of Motion, also known as the Law of Inertia, states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This means that the greater the resistance force, the greater the net force and acceleration of the object.

What is the difference between weight and mass in relation to resistance force?

Weight is the measure of the force of gravity acting on an object, while mass is a measure of the amount of matter in an object. In terms of resistance force, weight plays a role in determining the amount of force an object experiences due to gravity, while mass affects an object's resistance to changes in its motion.

How does resistance force affect the motion of an object?

Resistance force, also known as friction, acts in the opposite direction of an object's motion and can slow down or stop its motion. The amount of resistance force depends on factors such as the surface area and texture of the object, as well as the force pushing or pulling the object.

How can the concept of resistance force be applied in real-world situations?

Resistance force is a crucial concept in many real-world situations, such as in transportation. Cars and airplanes must overcome resistance force in order to move forward, and engineers must consider this force when designing efficient and aerodynamic vehicles. Resistance force also plays a role in sports, as athletes must overcome friction to move quickly and efficiently. Additionally, resistance force is important in building design and construction, as structures must be able to withstand the forces of friction and gravity.

Similar threads

Newton's 2nd Law: Why is Resistance Considered a Positive Force?
Replies
3
Views
1K
Newton's second law (My turtle named Newton being accelerated)
Replies
9
Views
2K
Feynman's Lectures exercise about Newton's laws
Replies
13
Views
992
Launching a Projectile with Air Resistance
Replies
13
Views
2K
Having a hard time learning Newton's 2nd law
Replies
5
Views
877
Newton's law problem: Pushing 2 stacked blocks on a horizontal table
Replies
13
Views
2K
Explanation for Newton II giving negative mass in my Physics lab results please
2
Replies
44
Views
2K
How does a difference in air pressure induce a force?
Replies
15
Views
1K
Bead on a rod which is being pulled by an ideal string with velocity v
Replies
27
Views
326
Understanding Newton's 2nd Law of Motion
Replies
6
Views
1K

Hot Threads

Recent Insights

Back
Top