Density of air = 1.3 kg m-3
Dimensions of room = 4.5 m × 3.5 m × 2.5 m
∴ Volume of room = 4.5 × 3.5 × 2.5 = 39.375 m3
Mass = density × volume
= 1.3 × 39.375
= 51.1875 kg
Therefore, mass of body = 51.1875 kg ≈ 51.19 kg
Density of air = 1.3 kg m-3
Dimensions of room = 4.5 m × 3.5 m × 2.5 m
∴ Volume of room = 4.5 × 3.5 × 2.5 = 39.375 m3
Mass = density × volume
= 1.3 × 39.375
= 51.1875 kg
Therefore, mass of body = 51.1875 kg ≈ 51.19 kg
Was this answer helpful?