Question

The weight of the man on earth is 150 N and on certain planet is 25 N.

Take g=10 m/s^2 on earth

a)Find the mass of the man on earth and planet
b)Find the acceleration due to gravity on the planet

Answer 1

see attachment....hope it will help u

Answer 2

We know that,

W = mg [ here w is weight , m is Mass and g is the acceleration due to gravity.]

The weight of the man on earth is 150 N

So,

150 = m × 10

or, m = 150/10 or 15 kg

We know the mass remains the same in all places.

So the mass of the man is 15 kg on earth and on certain planet.

Again,

W=mg

g= W/ m

or, g =25/15 or 1.67 m/s^2

The acceleration due to gravity is 1.67 m/s^2

Hope it helps.