If two objects are moving towards each other with speeds of 40 m/s and 60 m/s, how long will it take for them to collide if they are 200 m apart?

Practice Questions

1 question
Q1
If two objects are moving towards each other with speeds of 40 m/s and 60 m/s, how long will it take for them to collide if they are 200 m apart?
  1. 1 s
  2. 2 s
  3. 3 s
  4. 4 s

Questions & Step-by-step Solutions

1 item
Q
Q: If two objects are moving towards each other with speeds of 40 m/s and 60 m/s, how long will it take for them to collide if they are 200 m apart?
Solution: Relative speed = 40 m/s + 60 m/s = 100 m/s. Time = Distance / Relative speed = 200 m / 100 m/s = 2 s.
Steps: 6

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