Escape Speed Comparison

00:00 1 marks

The escape speed from the surface of planet X is $v_{\text{esc}}$. Planet Y has the same radius as planet X but twice the mass. What is the escape speed from the surface of planet Y?

A

$v_{\text{esc}} / \sqrt{2}$
B

$v_{\text{esc}}$
C

$\sqrt{2} v_{\text{esc}}$
D

$2 v_{\text{esc}}$

Hint Hint

Hint

Recall the formula for escape speed: $v_{\text{esc}} = \sqrt{\frac{2GM}{R}}$. Analyze how $v_{\text{esc}}$ changes when the mass (M) is doubled while the radius (R) remains constant.

Answer Answer
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Answer Answer

Complete Answer

$\sqrt{2} v_{\text{esc}}$

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors

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