NEET Physics Escape Velocity MCQ Question
Consider a diagram showing a projectile launched from the Earth's surface with an initial velocity V_i. The object is intended to escape Earth's gravitational influence. If the initial velocity is labeled as V_i = (2gR_E)^1/2, identify the condition that must be satisfied for this velocity in terms of the escape velocity.
V_i is equal to the escape velocity.
V_i is greater than the escape velocity.
V_i is less than the escape velocity.
V_i is unrelated to the escape velocity.
Correct Answer
Detailed Explanation
The escape velocity is derived from the condition V_i = (2gR_E)^1/2, where g is the gravitational acceleration and R_E is the radius of Earth. This corresponds to the minimum speed required for an object to escape Earth's gravitational pull.
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