An astronaut in a spacecraft looks out the window and sees an asteroid move past in a backwards direction at 68 m/s relative to the spacecraft. if the velocity of the spacecraft is 126 m/s relative to the position of the sun, what is the velocity of the asteroid relative to the sun?
194 m/s
−194 m/s
58 m/s
−58 m/s

-194 m/s

Explanation:

We are taking as a reference point the position of the sun

In this case,

The spacecraft is moving with a velocity of  +126 m/s

The asteroid is moving  past in a backwards direction at 68 m/s relative to the spacecraft.

Speed of the asteroid -  speed of the spacecraft =  68m/s

Speed of the asteroid =  68 m/s + 126 m/s

Speed of the asteroid =  194 m/s (backwards)

Beacuse the asteroid is moving in the opposite direction of the spacecraft

The asteroid has a velocity of -194m/s relative to the position of the Sun

d) the number of neutrons plus the number of protons

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.