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1. Three identical charges each +q are placed at the corners of an equilateral triangle of side d cm. Calculate the force on a +ve charge +2q at the centroid of the triangle. 2. Force acting on a charged particle kept between the pair of plates, having equal and opposite charge, is F. If one of the plates is removed, find the force acting on the same particle.

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PHYSICS BENCHMARK 2Calculating the Average AccelerationThe average acceleration (a) of any object over a given interval of time (t) can be calculated using the equationThis equation can be used to calculate the acceleration of the object whose motion is depicted by thevelocity-time data tableabove. The velocity-time data in the table shows that the object has an acceleration of 10 m/s/s. The calculation is shown below.Acceleration values are expressed in units of velocity/time. Typical acceleration units include the following:m/s/smi/hr/skm/hr/sm/s2These units may seem a little awkward to a beginning physics student. Yet they are very reasonable units when you begin to consider the definition and equation for acceleration. The reason for the units becomes obvious upon examination of the acceleration equation.Since acceleration is a velocity change over a time, the units on acAcceleration WorksheetName: ____________________Period: _______ 1. A turtle has a speed of 0.50 m/s. After 6 seconds, it has a speed of 0.80 m/s. What is the turtles average acceleration in m/s? (0.05)2. What is a sports car average acceleration if it can go from 0 m/s to 27 m/s in 6.0 sec? (4.5)3. A school bus can accelerate from a complete stop at 1.3 m/s2. How long will it take the bus to reach a speed of 12.1 m/s? (9.3)4. If a bicycle has an average acceleration of 0.44 m/s2, and its initial forward velocity is 8.2 m/s

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