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Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Subject :NSO    Class : Class 4

The given graph shows the time taken for a ping-pong ball to roll over the same distance over three different surfaces P, Q and R.
If the push and gravitational pull exerted on the ping pong ball are the same, which surface, P, Q or R is the smoothest?



AP
BQ
CR
DCannot be determined


Ans 1:

Devang Vrishni Kshirsagar from ,
Class : Class 4
But P stops at 4 m and Q goes farther than that

Ans 2:

Yash Kal from GP School, Mumbai
Class : Class 4
you first have to check the formula of casotate and then simplify and gravity and sort

Ans 3:

Shreeda Dewangan from Delhi public school , Raipur
Class : Class 5
HOW WILL IT BE P?...PLEASE EXPLAIN

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