15 Work and Kinetic Energy

15 Work and Kinetic Energy - travels 18m before is comes to...

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A snowball at the top of a small mountain breaks in half. One half rolls down the left side and the other down the right side, as shown below. Given that the mountain is 45m tall, determine the speed of each snowball at the bottom.
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An 80kg sled slides on the snow on a horizontal section of ground. If the sled is originally moving 3.0m/s, how much work does the snow do on the sled to bring it to a stop?
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Two 80kg sleds slide on the snow on a horizontal section of ground. The red sled is originally moving 3.0m/s and the blue sled is originally moving 1.5m/s, If the red sled
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Unformatted text preview: travels 18m before is comes to a stop, how far does the blue sled travel? As a 1kg ball on a spring passes through the equilibrium position, it is moving 1m/s. If the ball comes to a stop at 2m, what is the spring constant, k? A particular jet must be traveling 100m/s before it can lift off. The jet accelerates to 25m/s in 2.5s (31m). What will be the total time and distance before the jet lifts off?...
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15 Work and Kinetic Energy - travels 18m before is comes to...

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