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1. Find the horizontal and vertical components of a 4ON force the direction of which is 50º North of East. - a) Fx=30.64N; Fy=25.7N b) Fx=64.30N; Fy=27.5N c) Fx=25.7N; Fy=30.64N d) Fx=27.5N; Fy=64.30N

1. Find the horizontal and vertical components of a 4ON force the direction of which is 50º North of East. - a) Fx=30.64N; Fy=25.7N b) Fx=64.30N; Fy=27.5N c) Fx=25.7N; Fy=30.64N d) Fx=27.5N; Fy=64.30N

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. Find the horizontal and vertical components of a 40N force the direction of which is 50° North of East. a) Fx=30.64N; Fy=25.7N b) Fx=64.30N; Fy=27.5N c) Fx=25.7N; Fy=30.64N d) Fx=27.5N; Fy%364.30N 2. Find the horizontal and vertical components of a 40N force the direction of which is 50° East of North. a) Fx=30.64N; Fy=25.7N b) Fx=64.30N; Fy=27.5N c) Fx=25.7N; Fy=30.64N d) Fx=27.5N; Fy364.30N 3. Which Statement is true? a) A ball inside a moving car is not moving relative to the car b) A ball inside a moving car is moving relative to the ground c) Both statements are true d) none of the statements are true 4. In a vacuum tube, a feather is seen to fall as fast as a coin. This is because c) greater air resistance acts on the coin a) gravity doesn't act in a vacuum b) air resistance doesn't act in a vacuum d) gravity is greater in a vacuum 5. A body of mass 15kg rests on a horizontal frictionless plane and is acted on by a force of 30N. What is the acceleration produced? a) 5m/s? b) 3m/s? c) 4m/s² d) 2m/s? 6. When a net force acts on an object, its acceleration depends on the object's d) weight. a) initial speed b) volume c) mass 7. Raising an auto in a service station requires work. Raising it in half the time requires a) twice the power b) half the power c) the same power d) four times the power 8. What is the Potential energy of an 82kg boulder placed on top of a hill 5m high? b) 4810 J a) 4180 J c) 4108 J d) 4018 J 9. It is a quantity of motion described as the product of mass and velocity of a moving body. b) Momentum c) Kinetic energy a) Impulse d) Force 10. If a body has mass but is at rest, it has a) Zero Potential Energy b) Kinetic energy equal to its mass c) zero Momentum d) Force equal to its mass 11. When you roll a tapered cup across a table, the path of the cup curves because the wider end rolls a) slower b) faster c) at the same speed as the narrow part d) in an unexplained way
Transcribed Image Text:1. Find the horizontal and vertical components of a 40N force the direction of which is 50° North of East. a) Fx=30.64N; Fy=25.7N b) Fx=64.30N; Fy=27.5N c) Fx=25.7N; Fy=30.64N d) Fx=27.5N; Fy%364.30N 2. Find the horizontal and vertical components of a 40N force the direction of which is 50° East of North. a) Fx=30.64N; Fy=25.7N b) Fx=64.30N; Fy=27.5N c) Fx=25.7N; Fy=30.64N d) Fx=27.5N; Fy364.30N 3. Which Statement is true? a) A ball inside a moving car is not moving relative to the car b) A ball inside a moving car is moving relative to the ground c) Both statements are true d) none of the statements are true 4. In a vacuum tube, a feather is seen to fall as fast as a coin. This is because c) greater air resistance acts on the coin a) gravity doesn't act in a vacuum b) air resistance doesn't act in a vacuum d) gravity is greater in a vacuum 5. A body of mass 15kg rests on a horizontal frictionless plane and is acted on by a force of 30N. What is the acceleration produced? a) 5m/s? b) 3m/s? c) 4m/s² d) 2m/s? 6. When a net force acts on an object, its acceleration depends on the object's d) weight. a) initial speed b) volume c) mass 7. Raising an auto in a service station requires work. Raising it in half the time requires a) twice the power b) half the power c) the same power d) four times the power 8. What is the Potential energy of an 82kg boulder placed on top of a hill 5m high? b) 4810 J a) 4180 J c) 4108 J d) 4018 J 9. It is a quantity of motion described as the product of mass and velocity of a moving body. b) Momentum c) Kinetic energy a) Impulse d) Force 10. If a body has mass but is at rest, it has a) Zero Potential Energy b) Kinetic energy equal to its mass c) zero Momentum d) Force equal to its mass 11. When you roll a tapered cup across a table, the path of the cup curves because the wider end rolls a) slower b) faster c) at the same speed as the narrow part d) in an unexplained way
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