The options are: may or may not be, is not, and is. Situation: A block falls tow
ID: 1264809 • Letter: T
Question
The options are: may or may not be, is not, and is.
Situation: A block falls towards the ground (do not ignore air resistance). Total kinetic energy ? conserved. Total mechanical energy ? conserved. Total energy ? conserved. Situation: A block slides down an incline with constant velocity. Total kinetic energy ? conserved. Total mechanical energy ? conserved. Total energy ? conserved. Situation: A block slides down a frictionless incline. Total kinetic energy I ?I conserved. Total mechanical energy? ? conserved. Total energy ? conserved. Situation: Two blocks collide with each other and both stop. Total kinetic energy ? conserved. Total mechanical energy ? conserved. Total energy I ?I conserved.Explanation / Answer
(A) Kinetic Energy : is not conserved.
Total Mechanical energy : is not conserved .
Total Energy : May be conserved
(B)
Kinetic Energy : is conserved
Total Mechanical energy : is not conserved .
Total Energy : May be conserved (External force is applied to maintain the constant velocity).
(c)
Kinetic Energy : is not conserved
Total Mechanical energy : is conserved
Total Energy : is conserved
(D)
Kinetic Energy : is not conserved
Total Mechanical energy : is not conserved
Total Energy : May be conserved (taking sound , heat produced in collision)
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