What are possible speeds of two objects, if they move uniformly towards each other, they get 4m closer in each second and if they move uniformly in the same direction with the original speeds they get 4.0m closer in each 10s
A
2.8m/s and 1.2m/s
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B
5.2m/s and 4.6m/s
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C
3.2m/s and 1.2m/s
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D
2.2m/s and 1.8m/s
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Solution
The correct option is C2.2m/s and 1.8m/s here, v1+v2=4....(1) and v1−v2=4/10=0.4...(2) (1)+(2)⇒2v1=4.4 or v1=2.2m/s and v2=4−2.2=1.8m/s