John’s car is 0.50 mile behind Allen’s car while John is moving at 70 mile/hour and...
John’s car is 0.50 mile behind Allen’s car while John is moving at 70 mile/hour and Allen 60 mile/hour.
- a) If John doesn’t accelerate, how long does take him to catch up (right next to) with Allen?
- b) If John would like to catch up with Allen in 10 second, what kind of acceleration that
John needs to get from his car? At the moment when John’s car catches up with
Allen’s, how far has John traveled from the moment he accelerates his car?
1.0 mile=1609 m
At the moment of an elevator of height 10 feet (with initial velocity 2.0 m/s up) accelerates, a loose bolt drops from the ceiling. How long does it take the bolt to hit the floor if the acceleration of the elevator is
- a) 5.0 m/s/s up?
- b) 5.0 m/s/s down?
1.0 foot=30.5 cm
Homework Answers
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John’s car is 0.50 mile behind Allen’s car while John is moving
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can you give me the code for these two questions?
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