Physics
General
Easy
Question
An artificial satellite moving in a circular orbit around earth has a total (kinetic + potential energy) E0, its potential energy is
- -E0
- 1.5E0
- 2E0
- E0
The correct answer is: 2E0
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.
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A block of mass 300 kg is set into motion on a frictionless horizontal surface with the help of frictionless pulley and a rope system as shown in figure. What horizontal force F should be applied to produce in the block an acceleration of 
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