The air pushes the sail forward and the sail pushes the air backward. Since only the sail is attached to the cart, the cart moves forward.

**Table of Contents**show

## How does a fan cart work?

A large fan is placed on a cart with low-friction wheels. The fan is turned on and the cart moves backward, as expected. If a large “sail” (rectangular card) is attached so that the air from the fan strikes it perpendicularly, the system will not move.

## What Newton law is pushing a cart?

The behavior of the cart is a classic example of Newton’s Third Law: For every action, there is an equal and opposite reaction.

## How does a fan cart illustrate Newton’s third law for every force in one direction there is an equal force in the opposite direction?

By blowing to the left, the fans exert a force on the cart that pushes it to the right. This illustrates Newton’s third law : A force in one direction results in an equal force in the opposite direction. The velocity ( v ) of the cart is its speed and direction.

## How do you think the number of fans will affect the cart’s acceleration?

I think the number of fans will affect the cart’s acceleration because the cart is causing it to accelerate faster every time a fan is added. Experiment : Select the BAR CHART tab and turn on Show numerical values. For each of the situations below, record the acceleration of the cart.

## What is the relationship between acceleration and force?

Newton’s second law of motion describes the relationship between force and acceleration. They are directly proportional. If you increase the force applied to an object, the acceleration of that object increases by the same factor. In short, force equals mass times acceleration.

## What was the difference and the carts movement with and without the sail?

Without its sail in place, the cart moves along a smooth, leveled surface. When the sail is set parallel to the air flow it does not move; if you adjust the sail’s angle with respect to the “wind,” the cart moves at different speeds, to different directions.

## Would the cart’s final speed be higher or lower if the fan were set to medium instead of low?

The cart speeds up more on Medium. Force causes the speed of the cart to change. If more force is used, the speed the cart changes more quickly.

## What happens to an object when opposite forces are exactly equal?

Balanced forces are equal and opposite forces that act on the same object. That’s why they cancel out. Action-reaction forces are equal and opposite forces that act on different objects, so they don’t cancel out. In fact, they often result in motion.

## Why pushing a cart is second law of motion?

Newton’s second law of motion explains acceleration produced in cars and trucks by applying an equal magnitude of force to both. On pushing a car and a truck with the same force, the car accelerates more because its mass is far lesser than the mass of the truck.

## Which is the best example of Newton’s third law of motion?

Newton’s 3rd law of motion states that action and reaction are always equal but opposite in direction. Common examples of newton’s third law of motion are: A horse pulls a cart, a person walks on the ground, a hammer pushes a nail, magnets attract paper clip.

## How do you demonstrate Newton’s third law?

## How did doubling the force affect the acceleration of the cart?

The acceleration is equal to the net force divided by the mass. If the net force acting on an object doubles, its acceleration is doubled. If the mass is doubled, then acceleration will be halved.

## What is Newton’s third law of motion in simple terms?

Newton’s third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. The third law is also known as the law of action and reaction.

## What does Newton’s third law of motion state?

Newton’s third law simply states that for every action there is an equal and opposite reaction. So, if object A acts a force upon object B, then object B will exert an opposite yet equal force upon object A.

## How does changing the mass of the fan cart affect its acceleration?

With added mass, there a decrease in the rate of acceleration because the fan cart now has the added mass that resists the change in motion.

## How will changing the mass of the cart affect its acceleration?

Stated another way, the acceleration is directly related to the unbalanced force: the stronger the force, the greater the acceleration. The acceleration is inversely related to the mass: the greater the mass, the less the acceleration.

## What will the motion of the cart be like when there is no force at all there is no friction in this mode?

Answer: it will be on rest….just revise the i law of motion…

## Why does acceleration increase when force increases?

From Newton’s Second Law of Motion, we know that F = ma, from the equation, we can see that force is directly proportional to the acceleration. This is the reason why when force increases, acceleration increases.

## Why does acceleration decrease as mass increases?

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

## What factors affect acceleration?

The acceleration of an object depends on the mass of the object and the amount of the force applied to it. It states that the acceleration of an object increases with increased force and decreases with increased mass.

## Can you use a fan to move a sailboat?

A: Yup, you can make the sailboat move in this fashion, but there are some ways to set it up that will work better than others. Pointing a fan mounted on the back pointing it straight at a sail whose surface is perpendicular to the air coming from the fan.

## Will a boat move when air from an electric fan situated in it strikes the sail?

Solution : No, From Newton’s 2nd law of motion we know that a body comes to acceleration when some external force is applied over the body. When the fan pushes the sail by the air, then air also pushes the fan in opposite direction. The fan is also part of the boat and hence boat cannot be propelled.

## Is Blowing your own sail possible?

Of course it’s possible. The air is blown forwards and bounces off the umbrella. The net flow is to the back.

## What provided the force that made the cart speed up?

What provided the force that made the cart speed up? The fan.