Please answer the following 6 questions, Greatly appreciated.
1) When the net force on an object is zero, the object will ? Select one (a) travel in a straight line (b) travel at a constant speed (c) both a and b (d) neither a or b
2) When the net force is zero, the object’s acceleration is____ a____ , and its velocity ___b____ . a) zero / non-zero (circle one) explain your answer. b) is constant / will change (circle one) explain your answer.
When the net force is not zero, the object’s acceleration is____ c_____ , and its velocity ______d______ . c) zero / non-zero (circle one) explain your answer. d) is constant / will change (circle one) explain your answer.
3) Can something accelerate without a force acting upon it? Why or why not?
4) Can you accelerate without changing your speed? Why or why not? (Think very carefully about this)
5) Give an example where something travels in a straight line while a force is acting on it. (besides net force is zero)
6) Give an example where something travels at a constant speed while a force is acting on it. (besides net force is zero)
Please answer the following 6 questions, Greatly appreciated. 1) When the net force on an object...
An object subject to a net force cannot have a constant speed . __________ An object moving at a constant rate cannot have one force acting on it. __________ An object that has a constant speed in one direction has no forces acting on it. __________ Free-body diagrams always tell us the direction of motion. __________ When the net force on an object is zero the object is at rest. __________ The sum of the Newton’s...
When an object has a net force acting on it, the object absolutely must... O be accelerating. O be at rest. O have zero speed. O be in motion with a constant velocity. O have zero acceleration.
1/ When a net amount of Work is done on an object (by a non-conservative force), what is the significance of the sign of the net Work to the change in that object’s Mechanical Energy? 2 /Explain why friction is not a conservative force but the force of gravity is.
First, a constant force will NOT cause an object to accelerate faster and faster; it will cause a constant (non-changing) acceleration. Only a changing force can cause a changing acceleration. That being said, a constant force can cause an object to move faster and faster--in which case the displacement is changing non-linearly, the velocity is changing linearly, and the acceleration is not changing at all (i.e., it is constant). A related misconception is that a constant force applied to an...
The force that causes an object to move in a circle is called the The centrifugal force The centripetal force There must be both centripetal and centrifugal force Nonsense! No force is required to cause an object to move in a circle Inertia A tin can on the end of a string moves in a circle because There is an unbalanced inward force acting on the can The can continuously pulls the string o Once the can starts moving its...
understanding newton's law 1. An object cannot remain at rest unless which of the following holds? a. The net force acting on it is zero. b. The net force acting on it is constant and nonzero. c. There are no forces at all acting on it. d. There is only one force acting on it. which one is the answer? there can be more than one answer.... 2. If a block is moving to the left at a constant velocity,...
Please answer the following question
In Case A an object is moving straight downward with a constant speed of 9.80 m/s, while in Case B an object is moving straight downward with a constant acceleration of magnitude 9.80 m/s2. Which one of the following is true? a nonzero net external force acts on the object in neither case. a nonzero net external force acts on the object in Case B only. a nonzero net external force acts on the object...
5. Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 5.0 m/s Which one of the following statements accurately describes the motion of this particle? A) The particle travels 5.0 m during each second. B) The particle travels 5.0 m only during the first second. C) The speed of the particle increases by 5.0 m/s during each second. D) The acceleration of the particle increases by 5.0 m/s during each second....
True or false: 1) If a net force acts on an object, the object's speed will change. 2) The net force which acts on an object which remains at rest is zero. 3) An object's velocity will change if a net force acts on the object. 4) If a net force acts on an object, the object's velocity will change. 5) If an object's speed does not change, no net force is acting on the object. Please write why they...
3. A 0.5 kg object moves along a straight line. The net force acting on the object varies with its displacement as shown by the graph on the next page. The object starts from rest at x = 0 and travels a total distance of 20 m. 5 4 Force 2 6 8 10 1214 16 18 2022 Displacement (m) each of the following: (a) the acceleration of the object at x-6 m (b) the time needed for the object...