Which of the following statements is correct? I. It is possible for an object to have motion in the absence of forces on the object. II. It is possible to have forces on an object in the absence of motion of the object. O A. statement I only O B. both statements I and II O C. statement II only neither statement I nor ||

Which of the following statements is correct? I. It is possible for an object to have motion in the absence of forces on the object. II. It is possible to have forces on an object in the absence of motion of the object. O A. statement I only O B. both statements I and II O C. statement II only neither statement I nor ||

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Description: Which of the following statements is correct?I. It is possible for an object to have motion in the absence of forceson the object.II. It is possible to have forces on an object in the absence of motionof the object.O A. statement I onlyO B. both sta

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 11CQ: (a) Give an example of different net external forces acting on the same system to produce different...

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(a) Give an example of different net external forces acting on the same system to produce different accelerations. (b) Give an example of the same net external force acting on systems of different masses, producing different accelerations. (c) What law accurately describes both effects? State it in words and as an equation.
(a) A cat with a mass of 850 kg in moving to the right with a constant speed of 1.44 m/s. What is the total force on the cat ? (b) What is the total force on the cat if it is moving to the left?
1. What happens to the object when you apply a constant force on it in space? A. It will continuously move B. It will move faster C. It will not move D. None of the Above 2. What will be its displacement after 5 s when a net force of 6 N acts upon an object with a mass of 2 kg and if the object was initially moving with a velocity of 1 m/s when the force was applied? A. 22.5 m B. 32.5 m C. 42.5 m D. 52.5 m 3. What will happen after collision of Boat X loaded with a total mass greater that of Boat Y which have both lost control and facing each other? A. Boat X and Y will move with the same speed B. Boat X will move faster than Y C. Boat X will move slower that Y D. Only boat X will move
different. e. There is not enough information to draw any conclusions regarding distance and displacement. 7. If a car is travelling, north with a constant speed of 25.0 m/s, what is the net force that acts on the car? a. EF = 9.80 N b. ΣF-0 C. EF =-9.80 N d. EF = 25.O N e. We cannot draw any conclusions about the force because we do not know the mass of the car. 8. If a fly collides with a windshield of a fast-moving car, which experiences impact force with a larger magnitude? a. The fly. b. The car. C. Both experience the same force. d. Depends whether the car isla Ford or a Holden. e. None of the above. Page 13 of 16 Assessment 3 of Semester 2, 2021 PHYS0004 Fundamentals of Physics 9. Select the most true statement from the following: a. Joule (J) is a unit of work. b. Joule (J) is a unit of energy. c. Joule (J) is a unit of power.
¿. The only force acting on a 10-kg object has components Fx = 60 N and Fy = 80 N. Find the acceleration of the object. a. 7.2 m/s2. O b. 9 m/s2. O c. 7 m/s2. С. O d. 100 m/s2. O e. 10 m/s2.
41. A woman driving a 2000 kg car at 15 m/s fully applies the brakes 50. m from a stoplight. If the car stops 5.0 m before the light, what is the magnitude of the average force applied by the brakes?A. 4100 NB. 4500 NC. 5000 ND. 45000 N
Answer the following with the correct letter. 1. A physical quantity related to the property of an object to resist changes in its motion. a. Inertia b. Acceleration c. Mass d. Force 2. True or false? In considering forces in systems, their direction is not important. a. True b. False 3. An object following a straight-line path at constant speed <blank>. a. Has net force acting upon it in the direction of motion b. Has zero acceleration c. Must be moving in a vacuum d. Has no forces acting on it
An object is moving with constant velocity in a straight line. Which of the following statements is true? A.There is no frictional force acting on the object. B.A constant force is being applied in the direction opposite of motion. C.A constant force is being applied in the direction of motion. D.There are no forces acting on the object. E.The net force on the object is zero.
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4. A change in the state of motion is evidence of a. a force b. an unbalanced force c. a force that has been worn out after an earlier application 5. From the equation F = ma, m is equal to a. a/F b. Fa c. F/a d. F-a 6. A Newton of force has what combination of units? a. kg-m/sec b. kg/m2 c. kg/m2/sec2 d. kg-m/sec2
2. If the net force acted upon an object is equal to zero, then its acceleration is equal to ________. a. mass x acceleration b. 9.8 m/s^2 z c. ero m/s^2 d. 100 m/s^2 3. The book is at the top of the wooden table, what are the forces exerted on the bool a. Friction and weight b. Normal force and weight c. Normal force and tension d. No force(s) exerted on the book 4. Which of the following state of motion will the body have zero acceleration? a. free fall b. accelerated motion c. both at rest and in uniform motion d. uniformly accelerated motion no need solution. answers only.