Final Exam Practice questions
... 10) A 100 N traffic light is suspended by two wires of length L1 and L2 as shown in the figure. If L1 = 3.0 m and L2 = 5.0 m and the distance x = 2.0 m, then the tension in the wire of length L1 is, a) 125 N b) 101 N c) 90 N d) 82 N e) 75 N 11) You are designing a soap-box derby race car that will r ...
... 10) A 100 N traffic light is suspended by two wires of length L1 and L2 as shown in the figure. If L1 = 3.0 m and L2 = 5.0 m and the distance x = 2.0 m, then the tension in the wire of length L1 is, a) 125 N b) 101 N c) 90 N d) 82 N e) 75 N 11) You are designing a soap-box derby race car that will r ...
Lecture 21.Roational..
... Rotational kinetic energy - again Objects rolling – energy, speed Rotational free-body diagram Rotational work ...
... Rotational kinetic energy - again Objects rolling – energy, speed Rotational free-body diagram Rotational work ...
Slide 1
... While a dancer is in the air (not in contact with the floor) the only force on the dancer is gravity and the trajectory of the center of gravity is a parabolic arc. If the dancer jumps a lesser height then the time in the air decreases ...
... While a dancer is in the air (not in contact with the floor) the only force on the dancer is gravity and the trajectory of the center of gravity is a parabolic arc. If the dancer jumps a lesser height then the time in the air decreases ...
Lecture 04: Rotational Work & EnergyProjectile Motion, Relative
... The Falling Object A solid, frictionless cylindrical reel of mass M = 2.5 kg and radius R = 0.2 m is used to draw water from a well. A bucket of mass m = 1.2 kg is attached to a cord that is wrapped around the ...
... The Falling Object A solid, frictionless cylindrical reel of mass M = 2.5 kg and radius R = 0.2 m is used to draw water from a well. A bucket of mass m = 1.2 kg is attached to a cord that is wrapped around the ...
Free Body Diagram
... then body B must apply the same type of force upon body A that is equal in magnitude and opposite in direction. ...
... then body B must apply the same type of force upon body A that is equal in magnitude and opposite in direction. ...
Dynamics - Mr. Grant's Site
... 1)At an instant when a soccer ball is slightly off the ground, a player kicks it, exerting a force of 25 N at 40.0°above the horizontal. The force of gravity acting on the ball is 4.2 N[down]. Determine the net force. 2) Two children pull a sled across the ice. One child pulls with a force of 15 N [ ...
... 1)At an instant when a soccer ball is slightly off the ground, a player kicks it, exerting a force of 25 N at 40.0°above the horizontal. The force of gravity acting on the ball is 4.2 N[down]. Determine the net force. 2) Two children pull a sled across the ice. One child pulls with a force of 15 N [ ...
Honors Physics: Practice Problems for Midterm
... is doing work at the end of the 30. s? c) How far would it travel in the same amount of time if the acceleration were in the opposite direction? 3. A constant force of 22 N is exerted for 5.0 s on a 12 kg object initially at rest. What is the change in speed of the object? 4. A stone is thrown outwa ...
... is doing work at the end of the 30. s? c) How far would it travel in the same amount of time if the acceleration were in the opposite direction? 3. A constant force of 22 N is exerted for 5.0 s on a 12 kg object initially at rest. What is the change in speed of the object? 4. A stone is thrown outwa ...
FORCE_AND_MOTION - Effingham County Schools
... • How can force be used to make objects move, change direction, or stop? • How is the motion of an object related to the size of the object and the amount of force that is applied to the object? • What is gravity and how does it affect things on the earth? • How do simple machines make work easier f ...
... • How can force be used to make objects move, change direction, or stop? • How is the motion of an object related to the size of the object and the amount of force that is applied to the object? • What is gravity and how does it affect things on the earth? • How do simple machines make work easier f ...
Student Word - Nuffield Foundation
... her suitcase in her hand. The mass of the hotel guest is 70 kg and the mass of the suitcase is 20 kg. The lift accelerates at 0.5 m s–2 as it sets off from the ground floor, and decelerates at 0.4 m s–2 as it nears the 4th floor. a Draw force diagrams showing the forces acting on: i the suitcase ii ...
... her suitcase in her hand. The mass of the hotel guest is 70 kg and the mass of the suitcase is 20 kg. The lift accelerates at 0.5 m s–2 as it sets off from the ground floor, and decelerates at 0.4 m s–2 as it nears the 4th floor. a Draw force diagrams showing the forces acting on: i the suitcase ii ...
Newton 2nd Law
... Air track with accessory box, smart pulley, string, mass hanger with masses. Discussion The purpose of this experiment is to investigate Newton's 2nd Law of Motion. A small mass (m) will hang over a pulley at the end of the airtrack and will pull a cart of mass (M) along the length of the airtrack. ...
... Air track with accessory box, smart pulley, string, mass hanger with masses. Discussion The purpose of this experiment is to investigate Newton's 2nd Law of Motion. A small mass (m) will hang over a pulley at the end of the airtrack and will pull a cart of mass (M) along the length of the airtrack. ...
Force
... force of gravity gets much smaller. • And as the distance between objects gets smaller or shorter, the force of gravity gets much greater. • Although the sun has tremendous mass, it is also very far away. This means that it has very little gravitational force on your body or on small objects around ...
... force of gravity gets much smaller. • And as the distance between objects gets smaller or shorter, the force of gravity gets much greater. • Although the sun has tremendous mass, it is also very far away. This means that it has very little gravitational force on your body or on small objects around ...
Applying Concepts
... moving but the force of gravity pulls down on it and the normal force of the table pushes up on it and these forces are balanced. ...
... moving but the force of gravity pulls down on it and the normal force of the table pushes up on it and these forces are balanced. ...
Chapter 10 - galileo.harvard.edu
... wheel has a translational speed v. Draw a picture. The lowermost point on the wheel has a net forward velocity: 2v v zero not enough information to say back ...
... wheel has a translational speed v. Draw a picture. The lowermost point on the wheel has a net forward velocity: 2v v zero not enough information to say back ...
Projectile Motion Projectile Motion
... near surface of Earth – Ex. Thrown football, bullet shot, cow launched from catapult. ...
... near surface of Earth – Ex. Thrown football, bullet shot, cow launched from catapult. ...
Physics_U7
... A honeybee with a mass of 0.150g lands on a 4.75g popsicle stick. The bee runs toward the opposite end of the stick. The stick moves with a speed of 0.120 cm/s relative to the water. Find the speed of the bee. ...
... A honeybee with a mass of 0.150g lands on a 4.75g popsicle stick. The bee runs toward the opposite end of the stick. The stick moves with a speed of 0.120 cm/s relative to the water. Find the speed of the bee. ...