Prob-1has an initial speed of 32ft / s and a constant deceleration of 4.5 ft/s^ 2 . 1. Determine the velocity of the trailer when t=5 . 2. What is the displacement of the trailer when t = 5 3. How much time is needed to stop the trailer? Prob-2: The acceleration of a particle traveling along a straight line is a = (7t ^ 2 - 1) * f * t / (s ^ 2) , determine the velocity (of the particle as a function of time t. Assume dot v 0 =6 ft/s when to = 0 s.

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A: The acceleration is k is constant, v is instantaneous speed.

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A: Answer Explanation:Step 1: Step 2: Step 3: Step 4:

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A:

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A: The radial displacement is The angular displacement is And at the instant

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A:

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A: Given:  ti = 0 tf = 5.20 s xi = 0.100 m xf = 0.420 m yi = 0.150 m yf = 0.380 m To find:  a)…

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A: Given, Position as a function of time = x(t) = t3 - 6t2 + 3t + 4   From the position as a function…

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.