Ch1 1.: Suppose where A has dimensions LT, B has dimensions, and C has dimensions Then the exponents n and m have the values:

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Presentation transcript:

Ch1 1.: Suppose where A has dimensions LT, B has dimensions, and C has dimensions Then the exponents n and m have the values:

2. The position y of a particle moving along the y axis depends on the time t according to the equation The dimensions of the quantities A and B are respectively

3. An aluminum cylinder of density 2.70 g/cm**3, a radius of 2.30 cm, and a height of 1.40 m has the mass (kg) of ?

Ch2 1. Fig 1 shows the position-time graph of an object. What is the average velocity of the object between t=0.0 s and t= 5.0 s?

2. A particle starts from the origin at t = 0 and moves along the positive x-axis. A graph of the velocity of the particle as a function of time is show in Fig 1. The average velocity of the particle between t = 0.0 s and 5.0 s is

3. The position of a particle moving along the x axis is described by the equation x(t) = t + t**3. Find its average acceleration for the time interval t = 1.0 s to t = 2.0 s.

4. A particle moving along the x axis has a position given by x =(24 t - 2 t**3) meters, where t is measured in seconds. How far is the particle from the origin (x=0) when the particle stops momentarily?

5. A stone is thrown downward from height (h) above the ground with an initial speed of 10 m/s. It strikes the ground 3.0 seconds later. Determine h