Motion of an Object on an Inclined Surface. While working on a house repair project for Habitat for Humanity, you place your toolbox on a board that is.

Slides:

Advertisements

Similar presentations

Forces at Angles. Recall: In this case the Applied Force is horizontal only If the F=Ff, it means the object is either at rest or moving at a constant.

Advertisements

Velocity v= v0 + at Position x = x0 + v0t + ½ at2 FORCES

No Strings Attached: Normal Forces, Force Vectors, Strings, Springs and Pulleys Chapter Important Vocabulary: Normal Force Contact Force Tension.

Forces in Equilibrium.

Forces and Inclines.

Normal Force Force on an object perpendicular to the surface (Fn)

Sliding Friction A force that opposes motion Acts parallel to the

Net Force Problems There are 2 basic types of net force problems

Forces applied at an Angle & Inclined Planes

Aim: How can we explain forces at an angle? Do Now: Solve for the x and y components: 10 N x y 30° x = 5 N x = 8.7 N.

Inclined Planes Lecture and Lab!!. Inclined Planes and Gravitational Force To analyze the forces acting on an object on an inclined plane (a tilted surface),

Inclined Planes An inclined plane is a surface set at an angle against a horizontal surface. Some examples of an inclined plane are ramps and sloping.

Motion on an Inclined Plane Lesson #6. Example Problem A skier weighing 562 N is resting on an incline of 30 degrees above the horizontal, with her poles.

Forces in Two Dimensions

Inclined Plane Problems

Static and Kinetic Friction

Newton’s Laws - continued

Lesson #33 Topic: Lesson #33 Topic: Net force in two dimensions Objectives: (After this class I will be able to) 1.Examine Normal force and observe different.

Vectors and Direction Investigation Key Question: How do you give directions in physics?

Aim: More Law of Inertia

Forces On An Inclined Plane. FfFf FNFN FgFg 30° Think about the forces as she sleds down the hill in the laundry basket (if it is not a non-frictionless.

Newton’s Laws - continued Friction, Inclined Planes, N.T.L., Law of Gravitation.

Newton’s Laws - continued Friction, Inclined Planes, N3L, Law of Gravitation.

 Isaac Newton  Smart Guy  Liked Apples  Invented Calculus  Came up with 3 laws of motion  Named stuff after himself.

Kahoot. Question 1 A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce that.

Warm up 1. A 13 kg wagon is pulled is pulled with an 8 N force. The handle makes a 30 degree angle with the horizontal. What is the horizontal acceleration.

Friction Friction Problem Situations. Friction Friction F f is a force that resists motion Friction involves objects in contact with each other. Friction.

Friction What is friction?. Answer Me!!! Think of two factors that affect friction.

Unit 2 1D Vectors & Newton’s Laws of Motion. A. Vectors and Scalars.

More Fun with Newton’s Laws Friction, Inclined Planes, N.T.L.

Forces on Inclined Planes Unit 3, Presentation 3.

Forces and Angles Physics 11.

Friction. Biblical Reference And they pulled him up with the ropes and lifted him out of the cistern. Jeremiah 38:13.

Box slides along horizontal at velocity constant. FfFf FpFp FwFw v c therefore,  F = 0 ; F p + F f = 0 ; F F = -F p Rest, therefore,  F = 0 ; F W +

Ch. 5: Using Newton’s Laws: Friction, Circular Motion, Drag Forces

Multiple Object Systems 1. Analyze the system as one object. 2. Analyze each object individually. 3. Create multiple equations to solve for multiple unknowns.

Forces on an incline. The Gravitational force FgFg FgFg FgFg FgFg FgFg FgFg The gravitational force on an object always points straight down and maintains.

Push and Pull Newton’s Laws. Newton’s First Law An object at rest remains at rest, and an object in motion continues in motion with constant velocity.

Objects on Inclined Planes I guess you could call them ramps if you want.

Physics 11 Dynamics 14 – Inclined Planes Mr. Jean.

Forces in Equilibrium & Motion along an Incline Chapter 7.1.

Practice with Inclined Planes

Friction and Forces on Inclined Planes. The Normal Force The normal force is the supporting force that acts on the object perpendicular to the surface.

“ Friendship is like peeing on yourself; everyone can see it, but only you get the warm feeling it brings.” Funnyquotes.com Course web page

Physics 11 Advanced Mr. Jean April 12 th, The plan: Video clip of the day Inclined planes Quest Assignment reminder 2d force questions.

An 7.3-kg object rests on the floor of an elevator which is accelerating downward at a rate of 1.0 m/s 2. What is the magnitude of the force the object.

Three blocks of masses M 1 =2 kg, M 2 =4 kg, and M 3 =6 kg are connected by strings on a frictionless inclined plane of 60 o, as shown in the figure below.

4-8 Applications Involving Friction, Inclines

Section 5.3 Section 5.3 Force and Motion in Two Dimensions In this section you will: Section ●Determine the force that produces equilibrium when.

-A force that opposes motion -Acts parallel to the surfaces in contact.

Unit is the NEWTON(N) Is by definition a push or a pull Can exist during physical contact(Tension, Friction, Applied Force) Can exist with NO physical.

Forces in Nature.

Chapter 4 Revisited Forces in two dimensions

Down the Slope Inclined Planes.

Down the Slope Inclined Planes.

Inclined Planes.

Down the Slope Inclined Planes.

Aim: How do we explain motion along an inclined plane?

Aim: How do we explain motion along an inclined plane?

Motion on Inclined Planes

The world is not as it seems

In practice we are given an angle (generally from the horizontal or vertical) and we use trigonometry 20N 20 sin 300N cos 300N.

Forces applied at an Angle & Inclined Planes

How does an inclined plane make work easier How does an inclined plane make work easier? How does it change the force that is applied to the inclined.

Consider an object on an inclined plane:

Motion Along an Incline

Gravitational Force and Inclined Planes

In this section you will:

Presentation transcript:

Motion of an Object on an Inclined Surface

While working on a house repair project for Habitat for Humanity, you place your toolbox on a board that is slanted (one end on the ground, the other end resting on a bucket). 1)What will be the resulting motion of the toolbox? 2)What forces are acting on the toolbox? FNFN FfFf FgFg It will either: a) remain at rest, or b) accelerate down the ramp.

FNFN FfFf FgFg If we want to analyze the motion of this toolbox, the normal x-y coordinate axis doesn’t really fit too well. Neither of the axes line up with the ramp, making it difficult to figure out what is going on.

FNFN FfFf FgFg By rotating the coordinate plane so that one axis is parallel to the ramp, it can be seen that the gravitational force can be resolved into two useful components. (The other two forces do not need to be; they are parallel to the axes.)

F g ( ‖) F g ( ⊥) FgFg Component of F g PARALLEL to the ramp [ F g ( ‖) ] Component of F g acting PERPENDICULAR to the ramp [ F g ( ⊥) ] Adding these components together produces the entire F g vector.

F g ( ‖) F g ( ⊥) FgFg These angles (Ѳ) are the same!

F g ( ‖) F g ( ⊥) FgFg F g ( ‖) FgFg

F g ( ⊥) FgFg

Example: A 45.0 kg polar bear cub slides down an icy (frictionless) slope. If the cub starts from rest and slides 3.0 meters down the 25° incline, what speed is it moving at the bottom?

FNFN FgFg F g ( ‖)

FNFN FgFg

At this time, go back and finish the lab activity.

The bear hits a rough patch on the way down, producing a frictional coefficient of between its fur and the slope. What frictional force will act on the bear?

FNFN FgFg FfFf F g ( ⊥)

FNFN FgFg FfFf