Dynamics of a System of Particles
... The centre of mass of a system of particles moves as if it was a particle of mass equal to the total mass of the system and subject to the external force applied to the system. In an isolated system the centre of mass has no acceleration, it is at rest or it moves along a straight line with constant ...
... The centre of mass of a system of particles moves as if it was a particle of mass equal to the total mass of the system and subject to the external force applied to the system. In an isolated system the centre of mass has no acceleration, it is at rest or it moves along a straight line with constant ...
Force
... others act only when two objects are in contact with one another. – Contact forces exist when two objects are in contact with one another. – Long-range (FIELD) forces act over distances without a need for direct contact. Electromagnetic forces and gravity are long-range forces. ...
... others act only when two objects are in contact with one another. – Contact forces exist when two objects are in contact with one another. – Long-range (FIELD) forces act over distances without a need for direct contact. Electromagnetic forces and gravity are long-range forces. ...
Wednesday, Oct. 2, 2002
... A small ball of mass 2.00g is released from rest in a large vessel filled with oil, where it experiences a resistive force proportional to its speed. The ball reaches a terminal speed of 5.00 cm/s. Determine the time constant t and the time it takes the ball to reach 90% of its terminal speed. ...
... A small ball of mass 2.00g is released from rest in a large vessel filled with oil, where it experiences a resistive force proportional to its speed. The ball reaches a terminal speed of 5.00 cm/s. Determine the time constant t and the time it takes the ball to reach 90% of its terminal speed. ...
Transparancies for Dynamics
... Equations for (stationary) Alice’s position on boat w.r.t shore i.e. the co-ordinate transformation from frame S to S’ Assuming S and S’ coincide at t=0 : x x'vt Known as Gallilean transformations As we will see, these simple relations do not hold in y y' special relativity ...
... Equations for (stationary) Alice’s position on boat w.r.t shore i.e. the co-ordinate transformation from frame S to S’ Assuming S and S’ coincide at t=0 : x x'vt Known as Gallilean transformations As we will see, these simple relations do not hold in y y' special relativity ...
Concept Questions
... Rigid Bodies • Rigid body: An extended object in which the distance between any two points in the object is constant in time. Examples: sphere, disk … ...
... Rigid Bodies • Rigid body: An extended object in which the distance between any two points in the object is constant in time. Examples: sphere, disk … ...
Unit 4
... Conclude that an object will continue in a state of motion (rest or constant velocity) unless acted upon by a net outside force (Newton’s first law of motion – the law of inertia). Explain the law of inertia as a cause and effect relationship between an observed change in motion and the presence of ...
... Conclude that an object will continue in a state of motion (rest or constant velocity) unless acted upon by a net outside force (Newton’s first law of motion – the law of inertia). Explain the law of inertia as a cause and effect relationship between an observed change in motion and the presence of ...
相對論簡介
... – It places no upper limit on speed – It is contrary to modern experimental results – Newtonian mechanics becomes a specialized case of Einstein’s special theory of relativity • When speeds are much less than the speed of light ...
... – It places no upper limit on speed – It is contrary to modern experimental results – Newtonian mechanics becomes a specialized case of Einstein’s special theory of relativity • When speeds are much less than the speed of light ...
forces review activity
... 2. Get ready for warm up #5 3. Turn in your “One Pager” assignment 4. Test review is worth a grade Test tomorrow!! ...
... 2. Get ready for warm up #5 3. Turn in your “One Pager” assignment 4. Test review is worth a grade Test tomorrow!! ...
Slide 1
... of the object from the Sun. 10) Now let us try balancing the gravitational force of attraction with the inward centripetal force needed to maintain a circular orbit. F12 = Gm1m2/R2 and Fc = m1vc2/R, so Gm1m2/R2 = m1vc2/R Gm/a = v2 (I substituted “a” for “R”, as in Kepler’s Third Law) Since P =2πa/v, ...
... of the object from the Sun. 10) Now let us try balancing the gravitational force of attraction with the inward centripetal force needed to maintain a circular orbit. F12 = Gm1m2/R2 and Fc = m1vc2/R, so Gm1m2/R2 = m1vc2/R Gm/a = v2 (I substituted “a” for “R”, as in Kepler’s Third Law) Since P =2πa/v, ...
