Skip to content
Login Register

Practice question

MCQ

Question

A satellite orbits Earth at 2.5RE from the center. What is its orbital speed? (g\=9.8m/s2,RE\=6.4×106m)

Options

Choose one · Correct answer highlighted

Explanation

v = gRE2r. r = 2.5RE, v = 9.8×6.4×1062.5. v = 2.509×107≈5.01×103m/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 5.0 × 10³ m/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Discussion

Comments

0 comments

Share your thoughts. New comments appear after admin approval.

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic