Question

This is so important work guys please help me with these bits please yaar.

Answer 1

1 a ball rolling on a floor without changing its velocity
3 straight line
4 non inertial frame
5 acceleration
6 mv'2/r
2 a=v'2/r
7 siderial period
8 238855 miles
9 27.32 days known as synodic tym
10 the mass of the, earth
11 6.67408 × 10-11 m3 kg-1 s-2
12 sir Isaac Newton
13 9.8 m /s
14 gravity
15 gravitational acceleration
16 9.8 m/s '2
17 upward
18 gravitation
19 suppose you are in an elevator again with a weight machine (Seriously ). If someone snaps the rope of the elevator then the whole mass will free fall including you but if again you are wearing those same pair of shoes. It will still show zero kgs as your weight.

Answer 2

1) non uniform velocity
5) acceleration
7)the gravitational force of earth
8) 384400 km
9)27 1/3 days
10 the products of masses
11)G-6.67 multipled by 10 to the power of -1
12)cavendish
13)F = G r square / M1 M2
14) gravitational force
15)Acceleration due to gravity
16)9.8 m/s square
17downward
18) earth's gravitational force
19) In moon
20) On the earth