QCEVault

Gravity and motion — Question 125

Original QCE Vault practice · 1 mark

Q125 · Practice questionComplex familiar1 mark

QUESTION 125

Planet B orbits the same star at 99 times Planet A’s orbital radius. The ratio TBTA\frac{T_B}{T_A} is
(A)
2727
(B)
99
(C)
33
(D)
8181
Question linkSyllabus coverage

Related questions

  1. Q106 · Original practice · 1 mark
    A cyclist rounds a level circular bend at constant speed. Which vector points towards the centre of the bend?
    Gravity and motion
  2. Q107 · Original practice · 1 mark
    A satellite is moved from a circular orbit of radius rr to a circular orbit of radius 4r4r around the same planet. Its orbital speed becomes
    Gravity and motion
  3. Q108 · Original practice · 1 mark
    Two projectiles are launched from level ground with the same speed at 25∘25^{\circ} and 65∘65^{\circ}. Neglect air resistance. Which quantity is the same for both?
    Gravity and motion
  4. Q126 · Original practice · 3 marks
    A rescue capsule is launched from a 3.0 m3.0\,\mathrm{m} high platform at 24.0 m s−124.0\,\mathrm{m}\,\mathrm{s}^{-1} and 40.0∘40.0^{\circ} above the horizontal. Air resistance is negligible.
    Gravity and motion