Jack pushes a sled through loosely packed snow. Using a constant force, he pushed 4 second...

 

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Jack pushes a sled through loosely packed snow. Using a constant force, he pushed 4 second and gave the sled a final speed. To reach the same speed using a force that's four times as big. The force must be exerted for how long? ala Jack pushes a sled through loosely packed snow. Using a constant force, he pushed 4 second and gave the sled a final speed. To reach the same speed using a force that's four times as big. The force must be exerted for how long? ala

Answer rating: 100% (QA)

We can use the concept of work and energy to solve this problem The work done on an object is equal ... View the full answer