Q1 angular momentum of a body is measure of its _________
Q2 escape velocity =2√×________________
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1.rotational inertia
It is a measure of rotational inertia.
2.
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).
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