Newton's Laws of MotionVx True or False1.True or False.If an object is at rest, then there are no forces acting on it.True or FalseIf an object is moving with constant velocity in the positive xdirection, then it means that the net force acting on it points to thepositive x direction.True or FalseThere is no force acting on an object moving in a circular path atconstant speed.True or FalseAn object will only accelerate if there is a net force acting on it.

1. Newton's 1st law of motion asserts that if an object is at rest then all the external forces…

Answered: Newton's Laws of Motion x True or False…

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter2: Newton's Laws

Section: Chapter Questions

Problem 19P: . Under certain conditions, the human body can safely withstand an acceleration of 10 g. (a) What...

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A net force ___. (3.1) (a) can produce motion (b) is a scalar quantity (c) is capable of producing a change in velocity (d) both (a) and (c)
What forces act on you as you walk across a room? Draw a free-body diagram showing all of them. Which force or forces propel you forward? Why is it more difficult to walk on a slippery surface than on a nonslippery one? Explain how you use Newtons third law to control your motion.
The helicopter view in Figure P3.20 shows two people pulling on a stubborn mule. Find (a) the single force that is equivalent to the two forces shown and (b) the force a third person would have to exert on the mule to make the net force equal to zero. The forces are measured in units of newtons (N). Figure P3.20
. Under certain conditions, the human body can safely withstand an acceleration of 10 g. (a) What net force would have to act on someone with mass of 50 kg to cause this acceleration? (b) Find the weight of such a person in pounds then convert the answer to (a) to pounds.
Your hands are wet, and the restroom towel dispenser is empty. What do you do to get drops of water off your hands? How does the motion of the drops exemplify one of Newtons laws? Which one?
A person weighing 879. N rides in an elevator that has a downward acceleration of 1.37 m/s2. What is the magnitude of the force (in N) of the elevator floor on the person?
A person of weighing 0.83 kN rides in an elevator that has an upward acceleration of 0.8 m/s2. What is the magnitude of the force of the elevator floor on the person, in newtons?
What does "the acceleration is the manifestation of the force" means? a. We know that the existence of an influence, a force, will make an object move and accelerate. b. The force is powerful, as it can influence acceleration in a lot of ways. c. The force is an entity that is being manifested by acceleration. d. When there is acceleration, a force is there to remove it.
NO NEED FOR EXPLANATION NOR SOLUTION19. Which of the following situations applies Newton's Third Law of Motion?A. The gun recoils into your shoulder after firingB. Pushing a truck and a car with the same driving force, the car accelerates fasterC. A marathon runner is not able to stop himself after crossing the finish lineD. The bus driver abruptly brakes, pushing the passengers in the forward direction 20. An interaction between two objects or between an object and its environmentA. Mass C. AccelerationB. Position Vector D. Force
Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 130 kg, and when the astronaut gets on a scale, the reading is 484 N. What is the acceleration due to gravity on Mars? m/s2
A 12 kg block hanging on a string is pulled upward by the string with an upward acceleration of 6.2 m/s2. What is the tension in the string?
A 100-kg man stands in an elevator that starts to move from the fifth floor towards the first floor. In the initial portion of the trip, the elevator has an acceleration of 1.5 m/s2 . What is the force exerted by the floor on the man?

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