Question

a stone weight 490 N on a planet whose acceleration due to gravity is half that of the Earth. Calculate (1) the mass of a stone​

Answer 1

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Acceleration due to gravity on that planet is half than that of om earth ~

that is ~

• $\dfrac{9.8}{2} \: \: m/ {s}^{2}$

• $4.9 \: \: m/s {}^{2}$

And it's weight is equal to ~

• $490 \: \: N$

now, As we know ~

• $f = m \times g$

here ,

• f = Weight = 490 Newtons

• m = mass of stone = ?

• g = Acceleration due to gravity on that planet = 4.9 m/s²

let find the mass of stone ~

• $490 = m \times 4.9$

• $m = \dfrac{490}{4.9}$

• $m = 100 \: \: kg$

Mass of the stone is 100 kg ~

I hope it helped