Answered

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You have two carts, one which is empty and has mass m. The second cart is of the same mass but
loaded with twice the mass of the empty cart i.e. it has mass 3m. You push each of them (one at a time)
with the same constant force, over the same distance, starting from rest. After you have pushed them
through this distance, you remove the force. How will the kinetic energy of the loaded and empty carts
compare to each other?
2. In the same experiment as in the previous question, how will the speed of the loaded and empty
carts compare to each other?
3. In the previous question suppose the speed of the empty cart is ve and the speed of the loaded cart is
v. How is ve related to v?
4. What is 1 Joule of work?

Sagot :

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