The acceleration of the earth around the sun in its orbit is always:
Correct answer: B. Radial
- A. Tangential
- B. Radial
- C. Zero
- D. None of these options are correct
Explanation
Since the tangential velocity of the Earth around the Sun is constant (because all the years last the same for the orbit around the Sun), then the tangential acceleration will be zero. This is the reason why the acceleration of the Earth around the sun in its orbit is always radial.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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