01. Acceleration due to Gravity
Gravitation

138326 The height vertically above the earth's surface at which the acceleration due to gravity becomes $1 \%$ of its value at the surface is $(R$ is the radius of the earth)

1 $8 \mathrm{R}$
2 $9 \mathrm{R}$
3 $10 \mathrm{R}$
4 $20 \mathrm{R}$
Gravitation

138327 A fireman wants to slide down a rope. The breaking load for the rope is $\frac{3}{4}$ th of the weight of the man. With what acceleration should the fireman slide down? (Acceleration due to gravity is $\mathbf{g}$ )

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{4}$
3 $\frac{3 g}{4}$
4 zero
Gravitation

138328 The value of $g$ at a height equal to half the radius of the earth from the earth's surface is

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{3}$
3 $\frac{4 \mathrm{~g}}{9}$
4 $\frac{\mathrm{g}}{4}$
Gravitation

138329 A stone weighs $100 \mathrm{~N}$ on the surface of the Earth. The ratio of its weight at a height of half the radius of the Earth to a depth of half the radius of the earth will be approximately

1 3.6
2 2.2
3 1.8
4 0.9
Gravitation

138330 The gravitational field strength at the surface of a certain planet is $g$. Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

1 $\frac{g}{2}$
2 $\mathrm{g}$
3 $2 \mathrm{~g}$
4 $4 \mathrm{~g}$
Gravitation

138326 The height vertically above the earth's surface at which the acceleration due to gravity becomes $1 \%$ of its value at the surface is $(R$ is the radius of the earth)

1 $8 \mathrm{R}$
2 $9 \mathrm{R}$
3 $10 \mathrm{R}$
4 $20 \mathrm{R}$
Gravitation

138327 A fireman wants to slide down a rope. The breaking load for the rope is $\frac{3}{4}$ th of the weight of the man. With what acceleration should the fireman slide down? (Acceleration due to gravity is $\mathbf{g}$ )

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{4}$
3 $\frac{3 g}{4}$
4 zero
Gravitation

138328 The value of $g$ at a height equal to half the radius of the earth from the earth's surface is

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{3}$
3 $\frac{4 \mathrm{~g}}{9}$
4 $\frac{\mathrm{g}}{4}$
Gravitation

138329 A stone weighs $100 \mathrm{~N}$ on the surface of the Earth. The ratio of its weight at a height of half the radius of the Earth to a depth of half the radius of the earth will be approximately

1 3.6
2 2.2
3 1.8
4 0.9
Gravitation

138330 The gravitational field strength at the surface of a certain planet is $g$. Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

1 $\frac{g}{2}$
2 $\mathrm{g}$
3 $2 \mathrm{~g}$
4 $4 \mathrm{~g}$
Gravitation

138326 The height vertically above the earth's surface at which the acceleration due to gravity becomes $1 \%$ of its value at the surface is $(R$ is the radius of the earth)

1 $8 \mathrm{R}$
2 $9 \mathrm{R}$
3 $10 \mathrm{R}$
4 $20 \mathrm{R}$
Gravitation

138327 A fireman wants to slide down a rope. The breaking load for the rope is $\frac{3}{4}$ th of the weight of the man. With what acceleration should the fireman slide down? (Acceleration due to gravity is $\mathbf{g}$ )

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{4}$
3 $\frac{3 g}{4}$
4 zero
Gravitation

138328 The value of $g$ at a height equal to half the radius of the earth from the earth's surface is

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{3}$
3 $\frac{4 \mathrm{~g}}{9}$
4 $\frac{\mathrm{g}}{4}$
Gravitation

138329 A stone weighs $100 \mathrm{~N}$ on the surface of the Earth. The ratio of its weight at a height of half the radius of the Earth to a depth of half the radius of the earth will be approximately

1 3.6
2 2.2
3 1.8
4 0.9
Gravitation

138330 The gravitational field strength at the surface of a certain planet is $g$. Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

1 $\frac{g}{2}$
2 $\mathrm{g}$
3 $2 \mathrm{~g}$
4 $4 \mathrm{~g}$
Gravitation

138326 The height vertically above the earth's surface at which the acceleration due to gravity becomes $1 \%$ of its value at the surface is $(R$ is the radius of the earth)

1 $8 \mathrm{R}$
2 $9 \mathrm{R}$
3 $10 \mathrm{R}$
4 $20 \mathrm{R}$
Gravitation

138327 A fireman wants to slide down a rope. The breaking load for the rope is $\frac{3}{4}$ th of the weight of the man. With what acceleration should the fireman slide down? (Acceleration due to gravity is $\mathbf{g}$ )

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{4}$
3 $\frac{3 g}{4}$
4 zero
Gravitation

138328 The value of $g$ at a height equal to half the radius of the earth from the earth's surface is

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{3}$
3 $\frac{4 \mathrm{~g}}{9}$
4 $\frac{\mathrm{g}}{4}$
Gravitation

138329 A stone weighs $100 \mathrm{~N}$ on the surface of the Earth. The ratio of its weight at a height of half the radius of the Earth to a depth of half the radius of the earth will be approximately

1 3.6
2 2.2
3 1.8
4 0.9
Gravitation

138330 The gravitational field strength at the surface of a certain planet is $g$. Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

1 $\frac{g}{2}$
2 $\mathrm{g}$
3 $2 \mathrm{~g}$
4 $4 \mathrm{~g}$
Gravitation

138326 The height vertically above the earth's surface at which the acceleration due to gravity becomes $1 \%$ of its value at the surface is $(R$ is the radius of the earth)

1 $8 \mathrm{R}$
2 $9 \mathrm{R}$
3 $10 \mathrm{R}$
4 $20 \mathrm{R}$
Gravitation

138327 A fireman wants to slide down a rope. The breaking load for the rope is $\frac{3}{4}$ th of the weight of the man. With what acceleration should the fireman slide down? (Acceleration due to gravity is $\mathbf{g}$ )

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{4}$
3 $\frac{3 g}{4}$
4 zero
Gravitation

138328 The value of $g$ at a height equal to half the radius of the earth from the earth's surface is

1 $\frac{g}{2}$
2 $\frac{\mathrm{g}}{3}$
3 $\frac{4 \mathrm{~g}}{9}$
4 $\frac{\mathrm{g}}{4}$
Gravitation

138329 A stone weighs $100 \mathrm{~N}$ on the surface of the Earth. The ratio of its weight at a height of half the radius of the Earth to a depth of half the radius of the earth will be approximately

1 3.6
2 2.2
3 1.8
4 0.9
Gravitation

138330 The gravitational field strength at the surface of a certain planet is $g$. Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

1 $\frac{g}{2}$
2 $\mathrm{g}$
3 $2 \mathrm{~g}$
4 $4 \mathrm{~g}$