The weight of the hanging mass provides tension in the string, which helps to accelerate the cart along the track. A small frictional force will resist this motion.
Table of Contents
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 would happen to the speed of the cart if several bags of cement were added to the cart?
What would happen to the speed of the cart if several bags of cement were added to the cart? The greater mass would slow down or decelerate the cart because the pulling force has remained the same.
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?
Place fan A on the cart and turn it on by clicking the ON/OFF button below. 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 – Action Reaction: A force in one direction results in an equal force in the opposite direction.
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.
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 do you think the number of fans will affect the carts 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 will the motion of the cart be like when there is no force at all?
Answer: it will be on rest….just revise the i law of motion…
What does the velocity vs time V vs T graph show?
Velocity vs. time graph shows the variation of velocity with time.
How quickly does a 100kg object accelerate when pushed with a 400N force?
How quickly does a 100kg object accelerate when pushed with a 400N force? m/s2 9. How quickly would the 50kg box accelerate if the person applied a 560N force? 11.2 m/s2 Hint: You cannot test this directly with the simulation.
How many forces are applied to the fan cart?
In this situation, there are two forces exerted on the cart: air pushing backward on the fan, and air pushing forward on the sail. These two forces balance each other, and the cart does NOT move!
What are Newton’s 1st 2nd and 3rd laws of motion?
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Why do things move if Newton’s 3rd law is true?
This law states that every action has an equal and opposite reaction. Action and reaction forces are not balanced forces so they don’t cancel out. Action-reaction forces areequal and opposite forces that act on different objects, so they often result in motion.
What provided the force that made the cart speed up?
What provided the force that made the cart speed up? The fan.
What causes objects to slow down when they are no longer pushed?
Friction is a force that opposes the motion of objects; friction can cause objects to slow down. Air resistance is a type of friction.
What is the force needed to move an object?
The force (F) required to move an object of mass (m) with an acceleration (a) is given by the formula F = m x a. So, force = mass multiplied by acceleration.
What do you notice about the force and the product of mass and acceleration Ma?
According to Newton s Second Law of Motion, also known as the Law of Force and Acceleration, a force upon an object causes it to accelerate according to the formula net force = mass x acceleration. So the acceleration of the object is directly proportional to the force and inversely proportional to the mass.
How does a fan cart work?
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. Investigation 4: The fan pushes the air forward, and the air pushes the fan backward. Since the fan is attached to the cart, the cart is pushed backward.
What is a fan cart?
The Fan Cart is a large fan on a light-weight cart. It offers students the ability to perform kinematics and dynamics experiments with constant acceleration, variable mass, variable thrust, and variable thrust angle.
What causes the rolling ball to stop when there is no one to push it continuously?
A rolling ball stops because the surface on which it rolls resists its motion. A rolling ball stops because of friction.” ScienceLine.
What keeps an object at rest and what keeps it moving?
Inertia is a force which keeps objects at rest and moving objects in motion at constant velocity. Inertia is a force which brings all objects to a rest position. All objects have inertia.
What is velocity Science Grade 7?
Velocity defines the direction of the movement of the body or the object. Speed is primarily a scalar quantity. Velocity is essentially a vector quantity. It is the rate of change of distance.
How do you tell if velocity is increasing or decreasing?
If a>0, then velocity is increasing. If a<0, then velocity is decreasing. If a and v are the same sign, P is accelerating. If a and v are opposite signs, P is decelerating.
How do you tell if velocity is increasing or decreasing on a graph?
In a velocity-time graph, acceleration is represented by the slope, or steepness, of the graph line. If the line slopes upward, like the line between 0 and 4 seconds in the Figure above, velocity is increasing, so acceleration is positive.
What acceleration will result when a 20 N net force applied to a 4 kg object?
We know that the force of F=20 N F = 20 N is exerted on an object with a mass of m=4 kg m = 4 k g and we are asked to find the acceleration of this object. We may recall from Newton’s second law of motion that the force is equal to mass times acceleration. Therefore, the acceleration of the object is 5 m/s2 5 m / s 2 .