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AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Subject :NSO    Class : Class 8

Read the given passage and answer the following questions. A cuboid rests on the floor. Data of the cuboid and some other parameters are given here.

By rotating the cuboid, what is the minimum pressure it can exert on the floor?

A7500 Pa
B10000 Pa
C5000 Pa
D20000 Pa


Ans 1:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
C is the answer

Ans 2:

abishek from Chennai Public School, Chennai
Class : Class 8
Minimum pressure means maximum area as pressure is inversely proportional to area so, 1 cm = 1/100 m so the Largest area is 40cm*30cm = 4/10* 3/10 = 12/100 P =F/Area P = Mass*acceleration/area P = 60*10/(12/100) P = 600 * 100/12 P = 60000/12 = 5000 so answer is C

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