The radial velocity of the star Regulus is 6 km / s, and the tangential velocity is v = 30.26 km / s.

The radial velocity of the star Regulus is 6 km / s, and the tangential velocity is v = 30.26 km / s. Calculate the magnitude of the star’s total spatial velocity.

decision
v ^ 2 = v1 ^ 22 + v2; v = √v1 ^ 2 + v ^ 2 = √6 ^ 2 + 30.26 ^ 2 = 30.85 (km / s).

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