1) more work is required to increasea cars speed from 10.mph to 30mph, than from

Question

1) more work is required to increasea cars speed from 10.mph to 30mph, than from 50.mph to 60mph.... 2) A 1.0kw engine compared to a 0.50kw engine can do twice the amount of work in half the time..... 3) When a garbage truck crashes head on into a Volswagon, the Volkswagon experiences a greater impact force..... 4) Two mean, Dwaine and Jesse, push againt a wall with equal force. An exhausted Dwaine stops after 10min while Jesse is able to push for 5 min longer. Therefore jesse does 50% more work than Dwaine..... 5) If the speed of a car is doubled, its kinetic energy is doubled.... PLEASE ANSWER ALL QUESTIONS FROM 1 TO 5

Explanation / Answer

1) more work is required to increasea cars speed from 10.mph to 30mph, than from 50.mph to 60mph.... TRUE
2) A 1.0kw engine compared to a 0.50kw engine can do twice the amount of work in half the time.....TRUE
3) When a garbage truck crashes head on into a Volswagon, the Volkswagon experiences a greater impact force.....FALSE

4) Two mean, Dwaine and Jesse, push againt a wall with equal force. An exhausted Dwaine stops after 10min while Jesse is able to push for 5 min longer. Therefore jesse does 50% more work than Dwaine.....FALSE

5) If the speed of a car is doubled, its kinetic energy is doubled....FALSE

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