Rank these situations, on the basis of the initial gravitational potential energ
ID: 1483820 • Letter: R
Question
Rank these situations, on the basis of the initial gravitational potential energy, from least to greatest.
Least Gravitational PE Greatest Gravitational PE
1. ___________ 2.___________ 3. ___________ 4. ___________ 5. ___________ 6. ___________
Rank these situations in order from least to greatest the final kinetic energies of the sliding masses theinstant before they compress the spring.
Least KE Greatest KE
1. ___________ 2.___________ 3. ___________ 4. ___________ 5. ___________ 6. ___________
Rank these situations, on the basis of the elastic potential energy, from least to greatest, once the masscomes to rest against the spring.
Least Elastic PE Greatest Elastic PE
1. ___________ 2.___________ 3. ___________ 4. ___________ 5. ___________ 6. ___________
If the incline is not a frictionless surface, which of the above rankings would change?Calculate the following quantities for case A.
Gravitational Potential Energy at the top of the ramp:
Kinetic Energy just prior to striking the spring:
Speed of the mass just prior to striking the spring:
Elastic Potential Energy of the spring
5kg 10 m 5kg 1 m 5 m 1 m 5kg 5 5 m 5k 2 m 15kg lkg 0.5 m 5 m 1 mExplanation / Answer
1) F > C > A = B > D > E
2) F > C > A = B > D > E
3) F > C > A = B > D > E
Because, initial PE = m*g*h
final KE = m*g*h
final PE = m*g*h
here energy conserved.
4) the following quantities would not change.
Kinetic Energy just prior to striking the spring:
Speed of the mass just prior to striking the spring:
Elastic Potential Energy of the spring
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