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Question

How much speed is needed to escape the Earth's gravity?
  1. 9.2 Km/s
  2. 14.4 Km/s
  3. 12.4 Km/s
  4. 11.2 Km/s

A
12.4 Km/s
B
9.2 Km/s
C
14.4 Km/s
D
11.2 Km/s
Solution
Verified by Toppr

In physics, escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body. The escape velocity from Earth is about 11.186 km/s (6.951 mi/s; 40,270 km/h; 36,700 ft/s; 25,020 mph; 21,744 km) at the surface.

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