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Q1)
1) 82×5/18m/s
205/9m/s
2) 68×18/5km/hr
= 1224/5
= 2448/10
=244.8km/hr
3) 18×1000/60
300m/s
4) (2000/1000)÷(1/60)
2×60
120km/min
Q2) Speed=Distance/Time
= 60÷(3/4)
= 60 ×4/3
=80/hr
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Answer:
82×5/18 = 205/9 m/s
68×18/5 = 1324/5 km/h which is 26 km/h
18km/min = 1080km/h = 1080×5/18 = 300m/s
2000m/s = 400×18m/s = 7200m/s
speed of the vehicle is distance/time which is 80km/h
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