Question

value of escape velocity of a body on earth surface is?
a.11.2km/s
b.9km/s
c.10km/s
d.7.6km/s

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Answer 1

Answer:

about 11.2 km/s

Explanation:

On the surface of the Earth, the escape velocity is about 11.2 km/s, which is approximately 33 times the speed of sound (Mach 33) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s).

Answer 2

Answer:

$\huge{\underline{\underline{\boxed{\sf{\purple{a.11.2km/s}}}}}}$

$\huge{\underline{\underline{\boxed{\sf{\purple{Why}}}}}}$

• on the Earth escape velocity is 11.2km/s
• The formula for escape velocity comprises of a constant, G, which we refer to as the universal gravitational constant. The value of it is = 6.673 × 10-11 N . m2 / kg2. The unit for escape velocity is meters per second (m/s).