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Shiven Dinkar from DPS Noida, Delhi
Subject :NSO    Class : Class 4

Which of the following is correct about the girls moving the sack bags as shown in the above diagram?

1. Girl a has to work more against friction.
2. Girl b does not have to work against friction.
3. The wheels of the trolley have reduced the friction.

A 1 only
B 3 only
C 1 and 3 only
D 2 and 3 only


Ans 1:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
C

Ans 2:

Sashrika Pasunoori from KV Gachibowli, Hyderabad
Class : Class 5
I don't have explanation but answer is C

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C


Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Admin , all know the answer . But can give the explanation , you always write the answer only

Ans 5:

Adithya Sathyanarayanan from Chennai Public School, Chennai
Class : Class 6

Ans 6:

Samridh from DelhiPublicSchoolBangloreNorthCambridgeInternational, banglore
Class : Class 6
c

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