Over a time interval of 1.80 years, the velocity of a planet orbiting a distant star...

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Over a time interval of 1.80 years, the velocity of a planet orbiting a distant star reverses direction, changing from +20.0 km/s to -20.1 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. Include the correct algebraic sign with your answers to convey the directions of the velocity and the acceleration. (a) Number -4.01 Units m/s (b) Number -0.000000706 Units m/s^2 Over a time interval of 1.80 years, the velocity of a planet orbiting a distant star reverses direction, changing from +20.0 km/s to -20.1 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. Include the correct algebraic sign with your answers to convey the directions of the velocity and the acceleration. (a) Number -4.01 Units m/s (b) Number -0.000000706 Units m/s^2

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a To find the total change in the planets velocity we subtract the initial velocity from the fin... View the full answer