An object having dimensions 1 m by 2 m by 3 m and 2 kg mass- What is its density in kg - m 3 - Would it float in water-Density of water d water -1000 kg - m 3A- 3- YESB- 3 - 10-3- NOC- 0-33- YESD- 0-33 - 10-3- NO

The correct option is C 0.33, YES Volume of the object = 1 m×2 m×3 m = 6m^3. So, the density of object = mass of object/volume of object. Hence, d_object = ...

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Byju's Answer

Standard VII

Physics

Density and Its Units

An object hav...

Question

An object having dimensions 1 m by 2 m by 3 m and 2 kg mass. What is its density in $\frac{k g}{m^{3}}$ ? Would it float in water?

Density of water( $d_{w a t e r}$ = 1000 $\frac{k g}{m^{3}}$ )

0.33, YES

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0.33 x 10^-3,NO

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3,YES

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3 x 10^-3, NO

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Solution

The correct option is A
0.33, YES

Volume of the object = 1 m $\times$ 2 m $\times$ 3 m = 6 $m^{3}$ .
So, the density of object = $\frac{m a s s o f o b j e c t}{v o l u m e o f o b j e c t}$ .
Hence, $d_{o b j e c t}$ = $\frac{2 k g}{6 m^{3}}$ = 0.33 $\frac{k g}{m^{3}}$ .

Since the object is less dense than water and it would float.

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An object having dimensions 1 m by 2 m by 3 m and 2 kg mass. What is its density in kgm3? Would it float in water? Density of water(dwater = 1000 kgm3)

The correct option is A 0.33, YES Volume of the object = 1 m×2 m×3 m = 6m3. So, the density of object = mass of objectvolume of object. Hence, dobject = 2kg6m3 = 0.33 kgm3. Since the object is less dense than water and it would float.

An object having dimensions 1 m by 2 m by 3 m and 2 kg mass. What is its density in $\frac{k g}{m^{3}}$ ? Would it float in water?

Density of water( $d_{w a t e r}$ = 1000 $\frac{k g}{m^{3}}$ )