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Pratyush from GMA Dubai, Dubai
Subject :NSO    Class : Class 7

In a 100 m race, Gaurav and Sachin reached the finishing line at the same time. Which of the following are possible graphs to show that both competitors reached the finishing line at time t?



A(i) and (ii) only
B(i) and (iii) only
C(ii) and (iii) only
D(i), (ii) and (iii)


ans should be c then why d

Ans 1:

Soumyajit Roy from Delhi Public School Jamnagar, Jamnagar
Class : Class 9
But at 1 sachin is at rest

Ans 2:

Anay Paresh Patil from Akshara International School, Pune
Class : Class 8
it should be D) (i), (ii) and (iii) because all of them show them end at same time

Ans 3:

Raja Satwik Prasad Tetali from DELHI PUBLIC SCHOOL BANGALORE NORTH, Bengaluru
Class : Class 8

Ans 4:

Himanish Basu from Army Public School Kamaraj Road, Bangalore
Class : Class 7
In 3, two traingles are not congruent.So,answer is A.

Ans 5:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
Sachin in 1st one is at a constant speed from a particular period of time, till he finished his race.

Ans 6:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore
Class : Class 6

Ans 7:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10

Ans 8:

SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Class : Class 5
IN NO. 1 IS NOT SACHIN AT REST ?

Ans 9:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 8
THE CORRECT ASNWER SHOULD BE C because in (i) Sachin's starts the race from a non-zero speed which is practically impossible when a race starts

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