Homework For Lab 3 Force And Motion Answer Key REPACK
Homework for Lab 3: Force and Motion Answer Key
In this lab, you will explore the relationship between force, mass and acceleration using a cart, a track and a motion sensor. You will also investigate how friction affects the motion of the cart. You will use the data collected from the motion sensor to calculate the net force acting on the cart and compare it with the theoretical value. You will also analyze the graphs of position, velocity and acceleration versus time for different scenarios.
homework for lab 3 force and motion answer key
Here are the answers to the homework questions for this lab:
The net force acting on an object is equal to its mass times its acceleration. This is known as Newton's second law of motion. The equation is Fnet = ma.
The slope of a position versus time graph represents the velocity of the object. The slope of a velocity versus time graph represents the acceleration of the object. The area under a velocity versus time graph represents the displacement of the object.
A free-body diagram is a diagram that shows all the forces acting on an object. The forces are represented by arrows pointing in the direction of the force. The length of the arrow indicates the magnitude of the force. The net force is the vector sum of all the forces.
A frictional force is a force that opposes the motion of an object. It acts in the opposite direction of the object's velocity. The magnitude of the frictional force depends on the type and condition of the surfaces in contact and the normal force exerted by one surface on another.
The coefficient of friction is a dimensionless number that measures how much friction there is between two surfaces. It ranges from 0 to 1, where 0 means no friction and 1 means maximum friction. The coefficient of friction can be calculated by dividing the frictional force by the normal force.
In this lab, you will use two types of coefficients of friction: static and kinetic. Static friction is the friction that prevents an object from moving when a force is applied to it. Kinetic friction is the friction that acts on an object when it is moving. Usually, static friction is greater than kinetic friction.
I hope this helps you with your homework. Good luck!
In this lab, you will perform three experiments to test the effects of force and friction on the motion of the cart. In each experiment, you will use the motion sensor to record the position, velocity and acceleration of the cart as it moves along the track. You will also measure the mass of the cart and the applied force using a spring scale. You will then use the data to calculate the net force and the coefficient of friction for each scenario.
In the first experiment, you will apply a constant force to the cart and observe its motion on a horizontal track. You will vary the mass of the cart by adding or removing masses and repeat the experiment. You will then plot the net force versus acceleration for each trial and find the slope of the best-fit line. The slope should be equal to the mass of the cart according to Newton's second law.
In the second experiment, you will apply a constant force to the cart and observe its motion on an inclined track. You will vary the angle of inclination by adjusting the height of one end of the track and repeat the experiment. You will then plot the net force versus acceleration for each trial and find the slope of the best-fit line. The slope should be equal to the mass of the cart times the cosine of the angle according to Newton's second law.
In the third experiment, you will apply a constant force to the cart and observe its motion on a horizontal track with different surfaces. You will use a piece of sandpaper, a piece of felt and a piece of wax paper to cover part of the track and create different levels of friction. You will then plot the net force versus acceleration for each trial and find the slope of the best-fit line. The slope should be equal to the mass of the cart minus the coefficient of friction times the normal force according to Newton's second law. c481cea774