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Sagot :
(9) The force needed to make the object fall on Earth is 127.4 N.
(10) The mass of the object falling at the acceleration due is 1.94 kg.
(11) The force required for feather is 0.98 N and the force required for the bowling ball is 44.1 N
(9) The force needed to make the object fall on Earth is calculated form Newton's second law of motion.
F = mg
where;
- m is the mass of the object = 13 kg
- g is acceleration due to gravity = 9.8 m/s²
F = 13 x 9.8 = 127.4 N
Thus, the force needed to make the object fall on Earth is 127.4 N.
(10) The mass of the object is calculated from Newton's second law of motion.
F = mg
[tex]m = \frac{F}{g} \\\\m = \frac{19}{9.8} \\\\m = 1.94 \ kg[/tex]
Thus, the mass of the object falling at the acceleration due is 1.94 kg.
(11) The force required to make each of the objects fall is calculated from Newton's second law of motion.
Force required for feather: F = 0.1 x 9.8 = 0.98 N
Force required for the bowling ball: F = 4.5 x 9.8 = 44.1 N.
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