Express the speed 54km/h in cm/s
We know that,
1km=100000cm1hr=3600seconds
So, 54km/h=54×1000003600=1500cm/s
Add the following lengths
km m cm
20 600 90
40 750 25
+55 800 19
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Express the speed 54km/h in m/min.
tan54° can be expressed as
Find the average speed of train travelling 144km in 2hr . Express the answers in ms.
Evaluate :cot54°tan36°+tan20°cot70°-2tan45°