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Question 21M.2.HL.TZ2.10b.ii

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.HL.TZ2.10b.ii
Level HL Paper 2 Time zone TZ2
Command term Outline Question number b.ii Adapted from N/A
b.ii.
[Maximum mark: 1]
21M.2.HL.TZ2.10b.ii

The table gives data for Jupiter and three of its moons, including the radius r of each object.

A spacecraft is to be sent from Io to infinity.

(b.ii)

Outline, using (b)(i), why it is not correct to use the equation 2G×mass of Ioradius of Io to calculate the speed required for the spacecraft to reach infinity from the surface of Io.

[1]

Markscheme

«this is the escape speed for Io alone but» gravitational potential / field of Jupiter must be taken into account  ✓


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