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Results tagged with kinematics
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user 23402
The description of the movement of bodies by their position, velocity, acceleration (and possibly higher time derivatives, such as, jerk) without concern for the underlying dynamics/forces/causes.
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Functions of Time
Position is only a function of time. Velocity, acceleration, and jerk, are 1st,2nd, and 3rd order time derivatives of position (this is the number of times you have to take the derivative). Velocity d …
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Doubt in Kinematics
Set up $x_2= x_1+1/2 \times a(t_2-t_1)^2$ as your equation for $x_2$, solve for a, which gives a=2($x_2$−$x_1$)/($t_2$−$t_1$)$^2$, and plug that into the equation $x_2 = x_1 + v_0\times t_1+[(x_2-x_1) …
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Static friction force on a block in a tunnel
No, you cannot measure this, because the friction would be negligible in comparison to gravity. Anyway, what would hold the block back? In a normal situation, the block would just fall, and friction w …
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What does it mean if a body has kinetic energy?
Kinetic energy is the energy involved when an object moves.The energy is the amount of force needed to move an object a certain distance (a Joule, the unit of energy is 1 Newton*1 metre).The momentum …
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Is acceleration an average?
Acceleration can be used as an average of the change in velocity over the change in time. Acceleration becomes the derivative of velocity when velocity changes over extremely small intervals. If you r …
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