On planet R, a mineral sample weighs 54 N, where g=6.0 N kg−1g=6.0\ \mathrm{N\,kg^{-1}}g=6.0 Nkg−1. The sample is taken to planet S, where a second mineral sample is placed beside it. The combined weight of the two samples on planet S is 133 N, where g=7.0 N kg−1g=7.0\ \mathrm{N\,kg^{-1}}g=7.0 Nkg−1.
What is the mass of the second mineral sample?
10 kg10\ \mathrm{kg}10 kg
19 kg19\ \mathrm{kg}19 kg
11.3 kg11.3\ \mathrm{kg}11.3 kg
9.0 kg9.0\ \mathrm{kg}9.0 kg
103 exam-style questions on Edexcel GCSE Physics 2.3 Forces and Newton's laws, covering 2.3.1 Newton's first law, 2.3.2 Newton's second law, and 2.3.3 Weight and gravitational field strength. Each one has a worked solution and a mark scheme showing where the marks go.