The radius of Earth's circular trajectory is

The time for the Earth to travel around the Sun is

Thus the velocity is velocity

From this we can deduce the centripetal acceleration

Angular velocity is
Answer:
The force required is equal to
.
Explanation:
We know that
Torque = force × perpendicular distance
= F × R = I×
I = M×
From above equation
.............. 1
We know that
...........................2
Given that t= 2 sec


From equation 1 and 2 , we get
F =
= 
Upon substituting the above values we will be getting
F = 
Answer:
T2 ∝ a3
Explanation: took the quick check
Answer:
It measure the effort it takes for an object to move
Explanation:
Work done is the force applied to move a body through a particular distance.
It can also to be said to be a measure of the effort it takes for an object to move.
The unit of work done is in Joules.
To find work done, we use the expression below:
Work done = Force x distance