59. Which of the following deductions is/are true for Newton's first law of motion? 1 A body is in uniform motion only when no force acts on it. 2 A resultant force is necessary to cause an object to accelerate 3 The motion of a body in the absent of a net force is rectilinear.

59. Which of the following deductions is/are true for Newton's first law of motion? 1 A body is in uniform motion only when no force acts on it. 2 A resultant force is necessary to cause an object to accelerate 3 The motion of a body in the absent of a net force is rectilinear.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

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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Which of these is the best example of Newton's 1st law of motion? Your answer: When a dump truck is loaded with gravel (more mass) it accelerates much more slowly. Some of the dump truck's tires are newer than the others. The new tires grip the road better than the old ones. The dump truck is going down the road and the brakes stop wvorking. The truck keeps moving at the same speed until it hits a parked bus. When the dump truck hits the bus, both vehicles are damaged.
Solve questions part 1 and part 2. Make sure to use the correct units! Part 1: What is the mass of an object that requires a net force of 2400 N to accelerate it at a rate of 0.5 m/sec2 ? Part 2: How much force is needed to accelerate a 6.4 kg bowling ball at a rate of 2 m/sec2 ?
24. A pickup truck with mass 980 kg is initially at rest. The truck accelerates to a speed of 95 km/hr within a distance of 60 meters. What the direction and size of the force that acts on the truck? a. b. If the truck were carrying a load of 200 kg, what new force would be required to achieve the same acceleration?
1. State the three laws of motion. 2. Why does a child in a wagon seem to fall back when you give the wagon a sharp pull forward? 3. If the acceleration of an object is zero, are no forces acting on it? Explain. 4. If an object is moving, is it possible for the net force acting on it to be zero? 5. Only one force acts on an object. Can the object have zero acceleration? Can it have zero velocity? Explain. 6. When an object falls freely under the influence of gravity there is a net force mg exerted on it by the Earth. Yet by newton's third law the object exerts an equal and opposite force on the Earth. Does the Earth move?
According to Newton's 1st law of motion, if the net force acting is zero, ______________. a. an object at rest continues at rest b. a moving object increases its speed c. a moving object slowly comes to rest d. an object at rest starts to move with a positive acceleration
According to Newton’s second law: a. The velocity of a particle is equal to the net force on the particle divided by the mass of the particle. b. The net force on a particle is equal to the product of the velocity of the particle with the acceleration of a particle. c. The net force on a particle is equal to the product of the mass of the particle with the acceleration of a particle. d. The velocity of a particle is equal to the net force on the particle multiplied by the mass of the particle.
Which of the following statements is not one of Newton’s Laws on motion? a. In the absence of an unbalanced force, an object moves at constant velocityb. For any force there is always an equal but opposite reaction force.c. The force and the acceleration of a body are towards the same direction.
Which of the following are correct statements of Newton's 3rd law? Choose all that are correct. Any time an object feels a force (like gravity), it also feels a reaction force (like a table pushing up). Any time an object exerts a force on a second object, that second object exerts an equal and opposite force on the first object. The acceleration of an object is equal to the net force exerted on the object divided by its mass. If an object is at rest, that means 2 equal and opposite forces are acting on it.
4. A father and his young daughter are facing each other on ice-skates. With their hands, they push off against one another. The father has a mass of 90 kg and his daughter has a mass of 22 kg. Which one or more of the following statements is/are true? Explain your answer in your own words. Hint: Newton's laws of motion. (a) Each experiences an acceleration that has a different magnitude. (b) Each experiences an acceleration of the same magnitude. (c) Each experiences a pushing force that has a different magnitude. (d) Each experiences a pushing force that has the same magnitude.
Which of the following is true regarding Newton's Second Law of Motion? A. Increasing the net force applied on an object would decrease its acceleration B. For the same net force, the ratio of the masses of two bodies is directly proportional to the ratio of their accelerations, C. Changes in the net force would linearly change the acceleration D. It is only friction that affects the acceleration/deceleration of an object.
Which of Newton's Three Laws of Motion does the following statement satisfy? “Every object in a state of rest or uniform motion tends to remain in that state unless an external force is applied to it”. A. 1 st Law of Motion B. 3 rd Law of Motion C. 2 nd Law of Motion D. None.
Which statement is most nearly the same as Newton's third law? A) If the net force acting on an object is zero, it does not accelerate. B) When you push on an object, it pushes back just as strongly on you. C) Acceleration of an object is proportional to net force divided by mass. D) When one object exerts a force on a second object, the first object exerts an equal force on itself in the opposite direction.