Question

I just want to know the answer of 2nd and 3rd... plzz help me.

Answer 1

Hey Jayant, I'll help you out, don't worry :)

Now let's kick that troubling questions, shall we

(2) to convert km/h to m/s you need to multiply it with 5/18
so, 36*5/18 gives 10m/s

(3) Now, there is a value with km/s and other with m/s.. To find out which is bigger/ greater, multiply the km/h one with 5/18

72*5/18 = 20m/s
When 20m/s in compared with 21m/s, it is obvious that 21 m/s is highest, So the answer is 21m/s

Hope it helped my friend :)
Any queries, ping me !