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How to find velocity given a position function x(t)x(t)?

  1. Take the derivative of x(t)x(t) with respect to tt. 2. v(t)=x(t)v(t) = x'(t).
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How to find velocity given a position function x(t)x(t)?

  1. Take the derivative of x(t)x(t) with respect to tt. 2. v(t)=x(t)v(t) = x'(t).

How to find acceleration given a velocity function v(t)v(t)?

  1. Take the derivative of v(t)v(t) with respect to tt. 2. a(t)=v(t)a(t) = v'(t).

How to determine when a particle is moving to the right?

  1. Find the velocity function v(t)v(t). 2. Solve for when v(t)>0v(t) > 0.

How to determine when a particle is moving to the left?

  1. Find the velocity function v(t)v(t). 2. Solve for when v(t)<0v(t) < 0.

How to determine when a particle is speeding up?

  1. Find v(t)v(t) and a(t)a(t). 2. Determine when v(t)v(t) and a(t)a(t) have the same sign.

How to determine when a particle is slowing down?

  1. Find v(t)v(t) and a(t)a(t). 2. Determine when v(t)v(t) and a(t)a(t) have opposite signs.

How to find the displacement of a particle over an interval [a,b][a, b]?

  1. Find the velocity function v(t)v(t). 2. Evaluate abv(t)dt\int_{a}^{b} v(t) dt.

How to find the total distance traveled by a particle over an interval [a,b][a, b]?

  1. Find the velocity function v(t)v(t). 2. Evaluate abv(t)dt\int_{a}^{b} |v(t)| dt.

How to find the position function x(t)x(t) given v(t)v(t) and x(0)x(0)?

  1. Integrate v(t)v(t) to find x(t)=v(t)dt+Cx(t) = \int v(t) dt + C. 2. Use the initial condition x(0)x(0) to solve for CC.

How to find the acceleration at a specific time t=ct=c given x(t)x(t)?

  1. Find the second derivative a(t)=x(t)a(t) = x''(t). 2. Evaluate a(c)a(c).

What is the formula for velocity, given position x(t)x(t)?

v(t)=x(t)=dxdtv(t) = x'(t) = \frac{dx}{dt}

What is the formula for acceleration, given velocity v(t)v(t)?

a(t)=v(t)=dvdta(t) = v'(t) = \frac{dv}{dt}

What is the formula for acceleration, given position x(t)x(t)?

a(t)=x(t)=d2xdt2a(t) = x''(t) = \frac{d^2x}{dt^2}

How do you find the average velocity over an interval [a,b][a, b]?

x(b)x(a)ba\frac{x(b) - x(a)}{b - a}

How do you find the instantaneous velocity at time t=ct=c?

v(c)=x(c)v(c) = x'(c)

How do you find the instantaneous acceleration at time t=ct=c?

a(c)=v(c)=x(c)a(c) = v'(c) = x''(c)

If v(t)v(t) is given, how to find the position x(t)x(t)?

x(t)=v(t)dtx(t) = \int v(t) dt

If a(t)a(t) is given, how to find the velocity v(t)v(t)?

v(t)=a(t)dtv(t) = \int a(t) dt

How to find the displacement of an object from t=at=a to t=bt=b?

abv(t)dt\int_{a}^{b} v(t) dt

How to find the total distance traveled from t=at=a to t=bt=b?

abv(t)dt\int_{a}^{b} |v(t)| dt

What are the differences between velocity and speed?

Velocity: a vector quantity with magnitude and direction. Speed: a scalar quantity representing the magnitude of velocity.

What are the differences between displacement and total distance?

Displacement: change in position (can be negative). Total Distance: total length traveled (always non-negative).

What is the difference between average and instantaneous velocity?

Average Velocity: Velocity over an interval. Instantaneous Velocity: Velocity at a specific time.

Compare positive and negative acceleration.

Positive acceleration: velocity increasing in the positive direction. Negative acceleration: velocity increasing in the negative direction.

Compare speeding up and slowing down.

Speeding up: velocity and acceleration have the same sign. Slowing down: velocity and acceleration have opposite signs.

Compare velocity and acceleration.

Velocity: rate of change of position. Acceleration: rate of change of velocity.