Time gap between two cars

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Lets say there is car A which average speed is 20 m/s and is ahead of car b by 200 meters while car b average speed is 21 m/s and both are on a racing track that is 1700 meters in length. what is time gap between them? by time gap I mean by how many seconds.



Notice their average speed isn't constant and can vary.



How do I solve this and what formula should I use?




calculus real-analysis physics




share|cite|improve this question






















  • Welcome to Mathematics Stack Exchange !! We are here to help you with any kind of mathematical problems, but you have to show what you have tried. :)
    – Anik Bhowmick
    Aug 18 at 9:35










  • You have to define "time gap" - there are two plausible meanings.
    – Craig Hicks
    Aug 18 at 9:35










  • @craig I mean like how many seconds between them or the interval
    – user7716943
    Aug 18 at 9:41










  • For example, if $A$ is at the finish line now, then how many seconds until until $B$ crosses the finish line - is that your question? (As opposed to how long it takes for $A$ to catch up to $B$).
    – Craig Hicks
    Aug 18 at 9:47










  • You can define $t_g=fracdv_B-v_A=frac20021-20=200$ as the time that car B would need to reach car A if no condition changes.
    – N74
    Aug 18 at 9:51














up vote
-1
down vote

favorite












Lets say there is car A which average speed is 20 m/s and is ahead of car b by 200 meters while car b average speed is 21 m/s and both are on a racing track that is 1700 meters in length. what is time gap between them? by time gap I mean by how many seconds.



Notice their average speed isn't constant and can vary.



How do I solve this and what formula should I use?




calculus real-analysis physics




share|cite|improve this question






















  • Welcome to Mathematics Stack Exchange !! We are here to help you with any kind of mathematical problems, but you have to show what you have tried. :)
    – Anik Bhowmick
    Aug 18 at 9:35










  • You have to define "time gap" - there are two plausible meanings.
    – Craig Hicks
    Aug 18 at 9:35










  • @craig I mean like how many seconds between them or the interval
    – user7716943
    Aug 18 at 9:41










  • For example, if $A$ is at the finish line now, then how many seconds until until $B$ crosses the finish line - is that your question? (As opposed to how long it takes for $A$ to catch up to $B$).
    – Craig Hicks
    Aug 18 at 9:47










  • You can define $t_g=fracdv_B-v_A=frac20021-20=200$ as the time that car B would need to reach car A if no condition changes.
    – N74
    Aug 18 at 9:51












up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











Lets say there is car A which average speed is 20 m/s and is ahead of car b by 200 meters while car b average speed is 21 m/s and both are on a racing track that is 1700 meters in length. what is time gap between them? by time gap I mean by how many seconds.



Notice their average speed isn't constant and can vary.



How do I solve this and what formula should I use?




calculus real-analysis physics




share|cite|improve this question














Lets say there is car A which average speed is 20 m/s and is ahead of car b by 200 meters while car b average speed is 21 m/s and both are on a racing track that is 1700 meters in length. what is time gap between them? by time gap I mean by how many seconds.



Notice their average speed isn't constant and can vary.



How do I solve this and what formula should I use?





calculus real-analysis physics





share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Aug 18 at 9:38

























asked Aug 18 at 9:30









user7716943

11




11











  • Welcome to Mathematics Stack Exchange !! We are here to help you with any kind of mathematical problems, but you have to show what you have tried. :)
    – Anik Bhowmick
    Aug 18 at 9:35










  • You have to define "time gap" - there are two plausible meanings.
    – Craig Hicks
    Aug 18 at 9:35










  • @craig I mean like how many seconds between them or the interval
    – user7716943
    Aug 18 at 9:41










  • For example, if $A$ is at the finish line now, then how many seconds until until $B$ crosses the finish line - is that your question? (As opposed to how long it takes for $A$ to catch up to $B$).
    – Craig Hicks
    Aug 18 at 9:47










  • You can define $t_g=fracdv_B-v_A=frac20021-20=200$ as the time that car B would need to reach car A if no condition changes.
    – N74
    Aug 18 at 9:51
















  • Welcome to Mathematics Stack Exchange !! We are here to help you with any kind of mathematical problems, but you have to show what you have tried. :)
    – Anik Bhowmick
    Aug 18 at 9:35










  • You have to define "time gap" - there are two plausible meanings.
    – Craig Hicks
    Aug 18 at 9:35










  • @craig I mean like how many seconds between them or the interval
    – user7716943
    Aug 18 at 9:41










  • For example, if $A$ is at the finish line now, then how many seconds until until $B$ crosses the finish line - is that your question? (As opposed to how long it takes for $A$ to catch up to $B$).
    – Craig Hicks
    Aug 18 at 9:47










  • You can define $t_g=fracdv_B-v_A=frac20021-20=200$ as the time that car B would need to reach car A if no condition changes.
    – N74
    Aug 18 at 9:51















Welcome to Mathematics Stack Exchange !! We are here to help you with any kind of mathematical problems, but you have to show what you have tried. :)
– Anik Bhowmick
Aug 18 at 9:35




Welcome to Mathematics Stack Exchange !! We are here to help you with any kind of mathematical problems, but you have to show what you have tried. :)
– Anik Bhowmick
Aug 18 at 9:35












You have to define "time gap" - there are two plausible meanings.
– Craig Hicks
Aug 18 at 9:35




You have to define "time gap" - there are two plausible meanings.
– Craig Hicks
Aug 18 at 9:35












@craig I mean like how many seconds between them or the interval
– user7716943
Aug 18 at 9:41




@craig I mean like how many seconds between them or the interval
– user7716943
Aug 18 at 9:41












For example, if $A$ is at the finish line now, then how many seconds until until $B$ crosses the finish line - is that your question? (As opposed to how long it takes for $A$ to catch up to $B$).
– Craig Hicks
Aug 18 at 9:47




For example, if $A$ is at the finish line now, then how many seconds until until $B$ crosses the finish line - is that your question? (As opposed to how long it takes for $A$ to catch up to $B$).
– Craig Hicks
Aug 18 at 9:47












You can define $t_g=fracdv_B-v_A=frac20021-20=200$ as the time that car B would need to reach car A if no condition changes.
– N74
Aug 18 at 9:51




You can define $t_g=fracdv_B-v_A=frac20021-20=200$ as the time that car B would need to reach car A if no condition changes.
– N74
Aug 18 at 9:51















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