Question

For a satellite escape velocity is 11 km/s. If the satellite is launched at an angle of 60$^{\circ}$ with the vertical, then escape velocity will be

• A. 11 km/s
• B. $11 \sqrt 3 \,km /s$
• C. $\frac{11}{\sqrt 3 }\, km /s$
• D. 33 km/s

Answer 1

Answer: (A)

11 km/s

Answer 2

Escape velocity isn't actually a velocity at all. It's a speed a scalar quantity. So, no direction is presumed and so it applies to any direction.
Hence $v=11\,km/s$ projected velocity or otherwise.