At a distance of from the centre of a certain asteroid (mass )

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

At a distance of

2.0\times10^{5}\,\text{m}

from the centre of a certain asteroid (mass

5.0\times10^{12}\,\text{kg}

), the gravitational field intensity is

E_1

. At what distance from the asteroid’s centre will the field intensity be

2E_1

? (a)

1.0\times10^{5}\,\text{m}

(b)

1.6\times10^{5}\,\text{m}

(c)

1.4\times10^{5}\,\text{m}

(d)

2.8\times10^{5}\,\text{m}