1.
F= ma = 2000 x 3 = 6000 N
2.
F= ma = 90 x (-4) = -360 N
3.
F= ma = 0.05 x 60 = 300 N
4.
F = ma = 10 000 000 kg x 10 = 100 000 000 N = 1 x
108 N
5.
F = ma = 70 x 14 = 980 N
6.
F= ma = 1000 x 50 = 50 000 N
7.
F = ma = 0.1kg x 5 = 0.5 N
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