Physics
NULL
Medium
Question
When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?
A
5m/s, 1m/s
✓ Official correct answer
B
3m/s, 3m/s
C
6m/s, 1m/s
D
4m/s, 2m/s
Community credibility
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A
5m/s, 1m/s
No member explanations yet for this option.
B
3m/s, 3m/s
No member explanations yet for this option.
C
6m/s, 1m/s
No member explanations yet for this option.
D
4m/s, 2m/s
No member explanations yet for this option.
Explanation
Let the speeds be v1 and v2. Approaching: v1+v2=6. Same direction: v1-v2=4. Solving gives v1=5 m/s and v2=1 m/s.
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