What is the period of rotation of venus in earth-years if it is at a distance of 1.08x10^11m from the sun distance from the earth to the sun is 1.5x10^11m
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0.61 years is the period of rotation of Venus in earth.

Explanation:

This question explores the R-T relationship. As such, Kepler's third law - that the ratio is the same for all the planets - must be utilized.

from given question year substitute the values in the above formula,

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s