An object weighs 80 N on earth surface...?
The same object will weigh 20 N at an height from the surface of the earth?
Please explain how???????? :(
- Anonymous6 years agoBest Answer
mass remains same every where
when the object weigh 20 N
F=GMm/r^2 [at surface]
F'=GMm/(r+h)^2 [at height h]
so the answer is d
- SteveLv 76 years ago
Weight is inversely proportional to the square of the distance R from the center of the earth.
Ergo, if H = R → R' = 2R, g' = gR²/(2R)² = 0.25g
80*0.25 = 20
- 3 years ago
3.seventy 5 w=ma here, w1,w2 is weight of merchandise in earth and mars a1,a2 is acceleration in earth and mars mass would be comparable w1=m(a1) 350=m(9.5) =>m=35.seventy one w2=m(a2) 134=35.seventy one(a2) =>a2=3.seventy 5 subsequently C.3.seventy 5 is actual answer