1) an astronaut has 80 kg mass on earth
(a)what is his weight on earth?
(b)what will be his mass and weight on mars where g=3.7 m/s square
2)a certain particle has a weight of 30N at a place where the acceleration due to gravity is 9.8 m/s square
(a) what are its mass and weight at a place where acceleration due to gravity is 3.5 m/s square
(b)what are its mass and weight at a place where acceleration due to gravity is 0

Open in App

Solution

1.Mass of astronaut,m = 80 kg
Weight on earth = mg = (80)(9.8) N = 784 N
Weight on mars = mg' = (80)(3.7) N = 296 N
2.
Weight of the body, W = 30 N =mg
Mass of the body, m = W/g = 3.06 kg
New weight of the body, W' = mg' = (3.06)(3.5)N = 10.71 N
3. Mass remains the same but weight becomes zero.

Suggest Corrections

Similar questions

Q. The weight of a body on earth is

98 N

where acceleration due to gravity is

9.8 m s^{- 2}

. What will be its weight on the moon where acceleration due to gravity is

1.6 m s^{- 2}

Q. If the mass of a body is

10 k g

and acceleration due to gravity at a place is

9.8 m s^{- 2}

, then weight of body is .

Q. Luke Skywalker has a mass of

13 k g

and weight of

127.4 N

on Earth. Find his weight on the Endor moon. Acceleration on Endor due to gravity is

2 m s^{- 2}

The weight of an astronaut and his space suit on Earth is 60 kgf and 30 kgf respectively. Their combined weight on Moon will be___ kgf. (Acceleration due to gravity on Moon is $\frac{1}{6}$ of acceleration due to gravity on Earth)

Q. Relation between mass (m) of a body and its weight, (w) is:
(g is the acceleration due to gravity)

Join BYJU'S Learning Program

1.Mass of astronaut,m = 80 kgWeight on earth = mg = (80)(9.8) N = 784 NWeight on mars = mg' = (80)(3.7) N = 296 N2. Weight of the body, W = 30 N =mgMass of the body, m = W/g = 3.06 kgNew weight of the body, W' = mg' = (3.06)(3.5)N = 10.71 N3. Mass remains the same but weight becomes zero.

1.Mass of astronaut,m = 80 kg
Weight on earth = mg = (80)(9.8) N = 784 N
Weight on mars = mg' = (80)(3.7) N = 296 N
2.
Weight of the body, W = 30 N =mg
Mass of the body, m = W/g = 3.06 kg
New weight of the body, W' = mg' = (3.06)(3.5)N = 10.71 N
3. Mass remains the same but weight becomes zero.