Question

gravitation numerical class 9

Answer 1

v^2 = u^2 + 2gh

0 = 100 + 2× (-10) ×h

100/20 = h

h = 5 m

W = mg

49N = m × 9.8

m = 49/9.8

m = 5 kg

g earth : g moon

1 : 6.03

Answer 2

gravitation numerical :

• By Newton's law of solemnity.
• The value of the universal solemnity constant is6.672 x 10-11 N m2/ kg2.
• Illustration – 06 The distance of the earth from the earth is2.5 x 107 km and the gravitational force between them is3.82 x 1018N.
• Mass of the earth and earth are equal, each being5.98 x 1024 kg.

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