Question

A rectangular block of mass 30 kg measures 0.1 m by 0.4 m by 1.5 m.

Answer 1

We have $m=30\mathrm{kg}$ and $g\approx10\mathrm{\frac{m}{s^2}}$.

Calculate force (weight) by using $F=mg$.

$F=mg=30\mathrm{kg}\cdot10\mathrm{\frac{m}{s^2}}=300\mathrm{N}$

Hope this helps.

Answer 2

Answer:

294.30N

Explanation:

We use the following relationship to calculate the weight W of the block;

$W=mg............(1)$

where m is its mass and g is acceleration due to gravity. The value of g is taken as $9.81m/s^2$, the mass of the object is given by m = 30kg. Hence;

$W=30*9.81\\W=294.3N$