Answer:
Option C. 16.6 m/s
Explanation:
To round this 16.558 m/s to 3sf, we need to count the number beginning from 1. When we get to the 3rd number( ie 5), we'll examine the fourth number(i.e 5)to see if it less than five or greater. If it less than five, then we'll discard it. But if it five or greater, we'll approximate it and add it to the 3rd number.
So.
16.558 m/s = 16.6m/s to 3sf
Work done = force * distance
2m * 9.8
work done = 19.6 J
Answer/Explanation: Speed and direction can change with time. When you throw a ball into the air, it leaves your hand at a certain speed. As the ball rises, it slows down. Then, as the ball falls back toward the ground, it speeds up again. When the ball hits the ground, its direction of motion changes and it bounces back up into the air.
Answer:
(a) Radius of orbit will be 
(b) Earth gravitational force will be 
(C) Height will be 
Explanation:
We have given
Mass of the earth, 
Mass of the satellite, m = 5600 kg
Radius of earth, 
Time period T = 6200 sec
We know that 
Now
(a) We know that 
Radius of the orbit 
(b)
Force 
(c)
Altitude 
