Page 122 - text book form physics kssm 2020

(a) Calculate the gravitational acceleration, escape velocity and orbital period ofggggggggggggg
each planet.
(b) How do the values of gravitational acceleration, escape velocity and orbital period
infl uence the suitability of a new planet to be inhabited by humans?
(c) Choose the most suitable planet to be inhabited by humans. Give a reason for your
choice.

Enrichment Corner
Enrichment Corner

13. Assuming humans have successfully inhabited planet Mars. You and a group of scientists
are required to invent a system of man-made satellites around Mars. Th ese man-made
satellites consist of weather satellites, planet surface mapping satellites and communication
satellites. Table 3 shows information on planet Mars.

Table 3
Mass / kg 6.42 × 10 23
Radius of planet / m 3.40 × 10 6
Period of revolution / hours 24.6

Based on the information in Table 3, propose the characteristics of the satellite
orbit in terms of orbital height, orbital period, linear speed of satellite, launch base
as well as other suitable factors.

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