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Today’s topic
Solving problems for Newton’s law
Understand Newton’s law and find resultant forces
Solving problems
The net external force on the propeller of a 0.75 kg model airplane is 17N forward. What is the acceleration of the airplane?
The next external force on a golf cart is 390 N north. If the cart has a total mass of 270 kg, what are the magnitude and direction of its acceleration?
A car has a mass of 1.50 x 103 kg. What force is required to accelerate the car at 4.5 m/s2 to the east?
A 2.0 kg mass starts from at the top of an inclined plane 85 cm long and slides down to the bottom in 0.50 s. What net external force acts on the mass along the incline?
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