1) If you exert a net force of 8 N on a 2 kg object, what will its acceleration be? a) 2 m/s² b) 4m/s² c) 3m/s² d) 16m/s² e) 10m/s² f) 5m/s² 2) A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s². Determine the mass of the encyclopedia. a) 3.9kg b) 3.0kg c) 3.4kg d) 4.3kg e) 5.5kg f) 3.1kg 3) Suppose that a sled is accelerating at a rate of 2 m/s². If the net force is tripled and the mass is doubled, then what is the new acceleration of the sled? a) 1m/s² b) 2m/s² c) 3m/s² d) 4m/s² e) 5m/s² f) 6m/s² 4) A man of mass 50kg on the top floor of a skyscraper steps into an elevator. What is the man's weight as the elevator accelerates m 82 downward at a rate of 1.5 m/s²? g=10m/s² a) 395N b) 879N c) 425N d) 334N e) 544N f) 655N 5) A skydiver of mass 70kg has jumped out of a plane two miles above the surface of the earth. After 20 seconds, he has reached terminal velocity, meaning he is no longer accelerating. What is the force of the air on the skydiver's body? g=10 m/s² a) 700N b) 600N c) 800N d) 200N e) 550N f) 659N 6) How much force is needed to accelerate a 90 kg skier 2m/s² ? a) 180kg m/s² b) 180N c) 45kg m/s² d) 92N e) 45N f) 67 kg m/s² 7) A block of wood weighing 12.5 kg is lying on a rough horizontal surface. What is the force exerted by the surface on the block? a) 130N b) 120N c) 128N d) 123N e) 124N f) 118N 8) A car pulled by a tow truck has an acceleration of 2.0m/s². What is the mass of the if the net force on the car is 3000N? a) 200kg b) 700kg c) 1500kg d) 5000kg e) 500kg f) 65kg 9) What force must act on a 50.0 kg to give it an acceleration of 0.30m/s²? a) 30N b) 5N c) 45N d) 64N e) 40N f) 15N 10) What is the mass of a falling rock if it produces a force of 147N? a) 15kg b) 20kg c) 8kg d) 9kg e) 5kg f) 2kg

Maze Chase Game Physics

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