Question Detail

PHY 101 PHY 101 Past Questions Objective Question
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Question

The mean diameters of Mars and Earth are 6.9 × 10^3 km and 1.3 × 10^4 km, respectively. What is the value of the gravitational acceleration on Mars and the escape speed on Mars?
Options
A 3.8 m/s², 5.0 km/s
Correct Answer
B 8.3 m/s², 50 m/s
C 5 m/s², 38 m/s
D 6.9 m/s², 13.4 km/s
Correct Answer

Option A is the correct answer.

Detailed Explanation

Gravitational acceleration on Mars is about 3.8 m/s², and escape speed is about 5.0 km/s.

Hint

Use proportional reasoning with Earth's values.

Question Info

Course: PHY 101
Topic: PHY 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 122 of 1250
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