Two toy robots are having a race. Robot A can go 14 meter in 15 seconds. Robot B can go 1 meter in 50 seconds.
1) If Robot A continues at that same speed, how long will it take to go 1 meter? Remember units! _________
2) How long for Robot A to go 4 meters at that speed? Remember units! _________
Two toy robots are having a race. Robot A can go 14 meter in 15 seconds. Robot B can go 1 meter in 50 seconds.
1) If Robot A continues at that same speed, how long will it take to go 1 meter? Remember units! _________
2) How long for Robot A to go 4 meters at that speed? Remember units! _________
2 answers
Posting the same question 4 times in 7 minutes does not speed up the process, it rather slows it down.
robot A:
speed of = 14 metres / 15 seconds
= (14/15) m/s
by ratios:
14 m / 15s = 1 m/ x sec
cross-multiply, the units will divide out
14x = 15
x = 15/14 seconds
It will take 15/14 seconds to go 1 metre
so to go 4 metres at that speed would take
4(15/14) seconds or 30/7 seconds
Where does the very slow robot B enter the picture?
robot A:
speed of = 14 metres / 15 seconds
= (14/15) m/s
by ratios:
14 m / 15s = 1 m/ x sec
cross-multiply, the units will divide out
14x = 15
x = 15/14 seconds
It will take 15/14 seconds to go 1 metre
so to go 4 metres at that speed would take
4(15/14) seconds or 30/7 seconds
Where does the very slow robot B enter the picture?