A laboratory determines the local value of on Earth to be

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

Problem

A laboratory determines the local value of

g

on Earth to be

9.80\,\text{m s}^{-2}

. Using Earth’s mass

5.97\times10^{24}\,\text{kg}

and radius

6.37\times10^{6}\,\text{m}

, compute the experimental value of the universal gravitational constant

G

. (a)

6.67\times10^{-10}\,\text{N m}^{2}\text{kg}^{-2}

(b)

6.67\times10^{-11}\,\text{N m}^{2}\text{kg}^{-2}

(c)

4.00\times10^{-11}\,\text{N m}^{2}\text{kg}^{-2}

(d)

6.67\times10^{-12}\,\text{N m}^{2}\text{kg}^{-2}