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2 marksEffects of Forces

CAPE Physics Unit 1 · 2002 · Paper 2 · Question 5(b)

The distance between Earth and planet P is 2.0 x 10^21 m. The mass of planet P is 7 x 10^24 kg.

Calculate the gravitational force of attraction.

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Other parts of this question

  1. 5(a)(i)Show that the mass of the Sun in the Earth's orbit is four times the mass of the sun in Planet P's orbit.[8 marks]
  2. 5(a)(ii)Show that the period of the planet, P, is given by T = 2π * sqrt(r^3 / GM_P), where M_P is the mass of the planet and r the radius of the orbit.[8 marks]
  3. 5(c)Calculate the distance between the planet and its sun.[3 marks]
  4. 5(d)Calculate a value for g' the acceleration due to gravity on planet P.[4 marks]
  5. 5(e)What will he weigh on planet P?[3 marks]

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