Question

note : 1000 g = 1 kg

1. the weight of 1 kg bag of cement is

(a) 9.8 n
(b) 4 n
(c) 3.92 n
(d) 3920 n
(e) none of the above

Explanation:

Step1: Recall weight - mass formula

The formula for weight $W$ is $W = mg$, where $m$ is the mass and $g$ is the acceleration due to gravity. On Earth, $g=9.8\ m/s^{2}$.

Step2: Substitute values

Given $m = 1\ kg$, then $W=mg=1\ kg\times9.8\ m/s^{2}=9.8\ N$.

Answer:

A. 9.8 N