Activity12Workpart2Feb28

# Activity12Workpart2Feb28 - a What is the work done BY the...

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Activity 12 Work part 2 February 28, 2008 A child applies a force F to a 10 kg sled moving on the frozen surface of a small pond. The force as a function of position is shown below. Calculate the work done by the force when the sled moves from A: x=0 to x=8 m B: x=8 m to x=12 m C: x=12 to x =14m D: x=0 to x=14m If the sled starts at rest at x=0, find the speed of the sled at x=8 m x= 12m x=14 m 10 8 12 F(N) x(m) 14 -6

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A 5-kg block is moving with an initial speed of 6 m/s along a frictionless surface toward a spring with a spring constant k=500N/m that is attached to a wall.
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Unformatted text preview: a. What is the work done BY the spring? (understand the sign is important) b. Find the maximum distance the spring will be compressed. c. If the spring is compressed by 0.15 m and released, calculate the work done BY the spring as it moves to x=0. d. What is the maximum speed? (Where does it reach its maximum speed?) e. If the surface is not frictionless, but has a coefficient of kinetic friction of 0.2, how far will the block compress the spring for the block in part (a) from above? v o =6 m/s...
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Activity12Workpart2Feb28 - a What is the work done BY the...

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