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... d. air resistance. 13. What three factors affect the amount of air resistance acting on an object? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 14. What ...
... d. air resistance. 13. What three factors affect the amount of air resistance acting on an object? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 14. What ...
What is a Projectile - School of Physical Education
... More often than not, objects put in flight will be sent in direction other than exactly vertical or horizontal. They will be projected at some angle with respect to horizontal or vertical. If no other force acts on such object except which propels it into space, the object’s inertia will cause it to ...
... More often than not, objects put in flight will be sent in direction other than exactly vertical or horizontal. They will be projected at some angle with respect to horizontal or vertical. If no other force acts on such object except which propels it into space, the object’s inertia will cause it to ...
PreLec4.pdf
... Summary of Newton’s Three Laws • An object tends to remain at rest, or, if moving, to continue moving at constant speed in a straight line (1st Law). Objects tend to resist changes in motion (inertia) – mass measures this. • (2nd Law) When there is a net force on an object, it will accelerate: a = ...
... Summary of Newton’s Three Laws • An object tends to remain at rest, or, if moving, to continue moving at constant speed in a straight line (1st Law). Objects tend to resist changes in motion (inertia) – mass measures this. • (2nd Law) When there is a net force on an object, it will accelerate: a = ...
File - SPHS Devil Physics
... i. The gravitational mass of an object determines the amount of force exerted on the object by a gravitational field. ii. Near the Earth’s surface, all objects fall (in a vacuum) with the same acceleration, regardless of their inertial mass. d. A vector field gives, as a function of position (and p ...
... i. The gravitational mass of an object determines the amount of force exerted on the object by a gravitational field. ii. Near the Earth’s surface, all objects fall (in a vacuum) with the same acceleration, regardless of their inertial mass. d. A vector field gives, as a function of position (and p ...
Circular Motion ACT 1 Circular Motion Uniform Circular Motion
... Circular Motion Requires Net Force Net force may be provided by the tension in a string, the normal force, or friction, among other sources – as with any net force. ...
... Circular Motion Requires Net Force Net force may be provided by the tension in a string, the normal force, or friction, among other sources – as with any net force. ...
Centripetal Force
... loop. The jet has a velocity of 88m/s. The radius of the loop is 200m What is the pilot’s weight? what is the pilots ac? What is the pilots Fc? compare the pilots Fc to his weight ...
... loop. The jet has a velocity of 88m/s. The radius of the loop is 200m What is the pilot’s weight? what is the pilots ac? What is the pilots Fc? compare the pilots Fc to his weight ...
Weightlessness
Weightlessness, or an absence of 'weight', is an absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces from floors, seats, beds, scales, and the like. Counterintuitively, a uniform gravitational field does not by itself cause stress or strain, and a body in free fall in such an environment experiences no g-force acceleration and feels weightless. This is also termed ""zero-g"" where the term is more correctly understood as meaning ""zero g-force.""When bodies are acted upon by non-gravitational forces, as in a centrifuge, a rotating space station, or within a space ship with rockets firing, a sensation of weight is produced, as the contact forces from the moving structure act to overcome the body's inertia. In such cases, a sensation of weight, in the sense of a state of stress can occur, even if the gravitational field was zero. In such cases, g-forces are felt, and bodies are not weightless.When the gravitational field is non-uniform, a body in free fall suffers tidal effects and is not stress-free. Near a black hole, such tidal effects can be very strong. In the case of the Earth, the effects are minor, especially on objects of relatively small dimension (such as the human body or a spacecraft) and the overall sensation of weightlessness in these cases is preserved. This condition is known as microgravity and it prevails in orbiting spacecraft.