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Matter In Our Surroundings

Question
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A person travels a distance of 1.5 m towards east, then 2.0 m towards south and finally 4.5 m towards east. Find:

(i) the total distance travelled, and

(ii) the total displacement.

Solution

Given, a person travels 1.5 m towards east, then 2.0 m towards south and then 4.5 m towards east. 


The displacement of 1 m by 1 cm length of a line is rep
The various displacements can be represented as follows:
Distance space travelled space equals space OA space plus space AB space plus space BC space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 1.5 space plus space 2.0 space plus space 4.5 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 8.0 space straight m Displacement space space equals OC with rightwards arrow on top space equals space 6.3 space m space comma space along space OC.



Some More Questions From Matter In Our Surroundings Chapter

Convert the following temperature to Celsius scale.

300K

Convert the following temperature to Celsius scale.

573 K

Convert the following temperatures to Kelvin scale

25°C

What is the physical state of water at

100 °C

For any substance, why does the temperature remain constant during the change of state ?

Suggest a method to liquify atmospheric gases.

Convert the following temperatures to Kelvin scale.

35°C

Give reason for the following observations.

Naphthalene balls disappear with time without leaving any solid.

Give reason for the following observations.

We can get the smell of perfume sitting several metres away.

What is the physical state of water at

a) 25°C
b)00C
c)1000C

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