Answers

2016-01-27T16:28:02+05:30
Gravity is a force.
force = mass × acceleration
acceleration for earth = 9.8m/s

∴ gravity= (mass of the object × 9.8)  newton

0
do you require the derivation of how acceleration is 9.8 ?
yes
g = MG/R^2, 

where g – Acceleration due to gravity 
M – mass of the Earth = 5.98 x 10^24 kg 
G – Universal gravitational constant = 6.673 x 10^-11 Nm^2kg^-2 
R – Radius of the Earth = 6.38 x 10^6 m 

g = (5.98 x 10^24 x 6.673 x 10^-11) / (6.38 x 10^6)^2 
g = (39.90454 x 10^13) / (40.7044 x 10^12) 
g = 0.98034954 x 10 
g = 9.8 m/s^2 
 
mark as brainliest if that helped.
2016-01-27T19:12:28+05:30
Gravity is a force.
force = mass × acceleration
acceleration for earth = 9.8m/s

∴ gravity= (mass of the object × 9.8)  newton

0
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copy*
ok