Question

the time taken by Earth to complete one Revolution around the sun is 3.156 into 10 raise to 7 seconds the distance between the Earth and the Sun is 1.5 into 10 raise to 11 M find the speed of revolution of the earth

Answer 1

Think of this as a simple question in which you are given distance and time and you need to calculate speed.

radius=1.5×$10^{11}$
hence,
 circumference=2*3.14*1.5*10^11
 time=3.156*10^7

speed= circumference/time
v=$\frac{3*3.14*10^11}{3.156*10^7}$

Since it won't make any big a difference, let us cancel out 3.14 and 3.156
now,
 v=3*10^4 m/s

Answer 2

Answer:

The speed of revolution of the earth is 29.87 km/s.

Explanation:

See the attachment.