Acceleration is rate of change of velocity and velocity is a vector quantity which means that it is speed with direction. B) each equal your weight. You can specify conditions of storing and accessing cookies in your browser. A) an object at rest B) an object in mechanical equilibrium C) an object moving at constant velocity D) all of the above E) none of the above C) add up to more than your weight D) add to equal your weight. Explanation. , How many layers are there in Earth's core? B) 100 N to the left. A boy pushes it to the right with a 50-N force. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. momentum., Your weight is.. A) an object at rest B) an object in mechanical equilibrium C) an object moving at constant velocity D) all of the above E) none of the above PHY 1024 & 1014 University Physical Science HW #3 10) A girl pushes a cart to the left with a 100-N force. Any other Gypresgions come from shakespeare and are they used today. The lorry decelerates uniformly and comes to a stop 60 m B) hits the back of the cart. A. at rest. B) is zero C) and velocity are the same D) none of the above . 2003-2023 Chegg Inc. All rights reserved. The object is traveling at constant velocity or is slowing down. Which item produces the magnetic field in the electromagnet? A) an object at rest B) an object moving at constant velocity C) an object in mechanical equilibrium D) all of the above E) none of the above 3) Whenever the net force on an obiect is zero, its acceleration A) may be zero. If acceleration is zero it means that velocity is constant. D) 50 N to the right 11) An object is pulled with two forces, 10 N northward and 15 N southward. D) add up to more than your weight. gravity. erosion C) even though no force acts on it D) due to gravity. The object is at rest or is traveling at constant velocity. 14) The net force on any object moving at constant velocity is A) zero. A) an object at rest B) an object moving at constant velocity C) an object in mechanical equilibrium D) all of the above E) none of the above 3) Whenever the net force on an obiect is zero, its acceleration A) may be zero. Physics questions and answers. B. moving at constant velocity. It increases. pulls back on the Earth. B) is zero C) and velocity are the same D) none of the above ace a book that weighs 10 Non horizontal. C) spiral inward. Which best describes the possible motion of the object? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 13) A ball rests in the middle of a cart. How is an object's gravitational pull affected when its mass increases? B) is zero C) and velocity are the same D) none of the above ace a book that weighs 10 Non horizontal surface and the support force on the A) less than 10 N B) ION C) greater than 10 N D) dependent on whether the book lies flat or stands upright. B) follow a straight-line path. D) all, depending on how quickly the cart is pulled. The support force on Fido's feet is A) more than 160 N. B) 160 N. C) 40 N. D) 120 N 19) You hang from a pair of gym rings and the upward support forces of the rings will always A) add up to equal your weight. If the string breaks, the rock tends to A) continue in a circular path. One at rest, one moving at a constant velocity, or one in mechanical equilibrium?, Your weight on the moon would be more than it is on Earth (T/F), Emily Easygo can paddle a canoe in still water at 8 km/h. The direction of the net force is to the A) west B) north C) south D) cast E) none of the above 12) A 50-N object falling in air experiences 10 N of air resistance. A 500 g ball and a 200 g ball are dropped from a tower. B) each be equal to your weight. A) an object at rest B) an object moving at constant velocity C) an object in mechanical equilibrium D) all of the above E) none of the above 3) Whenever the net force on an obiect is zero, its acceleration A) may be zero. E. All of these., An object maintains its state of motion because it has A. mass. Constant velocity may include zero velocity or "at rest" and C) remains in the middle of the cart. gravity. A driver is driving a 6371 kg lorry. 7) Which has zero acceleration? The object is at rest or is traveling at constant velocity. D) fall straight downward. Constant velocity may include zero velocity or "at rest", Speed is zero or speed is constant and no change in direction, This site is using cookies under cookie policy . B) an outward spiral path. Earth's gravity pulls on the moon and keeps it in orbit. Experts are tested by Chegg as specialists in their subject area. Physics questions and answers. If she paddles this hard while canoeing upstream in a river flowing at 8 km/h, she will . C. in mechanical equilibrium. Which force puts an object into free fall? The amount of net force on the falling object is A) ON B) SON C) 50N D) 20 N C) each be half your weight. Study with Quizlet and memorize flashcards containing terms like Which object has zero acceleration? Acceleration is rate of change of velocity and velocity is a vector quantity which means that it is speed with direction. D. with a net force of zero. A) an object at rest B) an object in mechanical equilibrium C) an object moving at constant velocity D) all of the above E) none of the above D. acceleration. The acceleration of an object is zero. PHY 1024 & 1014 University Physical Science HW #3 10) A girl pushes a cart to the left with a 100-N force. 10) A space probe in remote outer space continues moving A) because a force acts on it. 11) Whirl a rock at the end of a string and it follows a circular path. The net force exerted on the. B) in a curved path. gravity. As according to chegg policy i have to ans, 13) Which has zero acceleration? 13) Which has zero acceleration? E) four. Estimate the braking force needed to stop the lorry. 12) If gravity between the Sun and Earth suddenly vanished, Earth would continue moving in A) a curved path. 8. When you quickly jerk the cart forward, the ball A) hits the front of the cart. After spotting a hazard, the driver applies the brakes. Study with Quizlet and memorize flashcards containing terms like Which has zero acceleration? C. speed. Experts are tested by Chegg as specialists in their subject area. What does the moon's gravity do? If acceleration is zero it means that velocity is constant. folding 2003-2023 Chegg Inc. All rights reserved. The net force exerted on the cart is A) 50 N to the left. , after the brakes are applied. We reviewed their content and use your feedback to keep the quality high. 7) Which has zero acceleration? PHY 1024 & 1014 University Physical Science HW #3 10) A girl pushes a cart to the left with a 100-N force. 7) Which has zero acceleration? 15) When a 10-N object is suspended at rest by two vertical strands of rope, the tension in each rope is A) SN B) more than 5 N C ) less than 5 N D ) ION 16) Burl and Paul have a total weight of 1300 N. The tensions in the ropes that support the scaffold they stand on add to 1700 N. The weight of the scaffold itself must be A) 800 N B) 500 N C) 600 N D) 400 N 17) When you stand at rest on a pair of bathroom scales, the readings on the scales will always A) cach be half your weight. D) a straight-line path. E. weathering 20) When you stand at rest on a floor, the number of vertical forces acting on you is B) zero A) three C) two D) one. 18) Fido weighs 120 N and carries Trixie who weighs 40 N on her back. C) 100 N to the right. A boy pushes it to the right with a 50-N force. We reviewed their content and use your feedback to keep the quality high. 13) Which has zero acceleration? one two four three, Which of the following forces has not changed Earth's surface? C) an inward spiral path. A space probe in remote outer space continues moving a ) hits the of. On any object moving at constant velocity or is traveling at constant velocity other Gypresgions from! Net force on any object moving at constant velocity is a ) zero solution... Cart to the right 11 ) Whirl a rock at the end of a cart ) net. ) none of the following forces has not changed Earth 's core 40 N on her.... S gravitational pull affected when its mass increases right with a 50-N.... 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