1:A motor moving in water acts on two opposite horizontal forces. One is the 3000 N...

1:A motor moving in water acts on two opposite horizontal forces. One is the 3000 N force applied by the motor in the forward direction, the other is the 1800 N force applied by the water in the opposite direction. What is the acceleration of the 1000 kg engine? (g = 9.8 m / s ^ 2)
A)1,2 B) 0,2 C) 4,8 D) 1
2:The three blocks are on a frictionless plane as shown in the figure. If m1 = 2 kg, m2 = 3kg, m3 = 4kg and F = 18 N, find the contact force between m1 and m2. (g = 9.8 m / s)
A)14 B) 2 C) 8 D) 18

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genius_generous answered 3 years ago

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