1. Differentiate work, energy and forces and answer some misconceptions about it.
Q: 5. A 3-kg ball is projected upward with an initial velocity that makes an angle 85° with the…
A: Given Data: Mass of the ball is m = 3 kg. The change in position of ball in vertical direction is…
Q: The third floor of a house is 10 m above the street level. How much work is required to lift a 500…
A:
Q: Why is work a dot product of force and displacement, and not a cross product
A: Work is scaler quantity which has only magnitude, no direction. Force and displacement are vector…
Q: 8. Use graphing techniques to determine how much work is required to stretch an elastic bungee cord…
A:
Q: 4. How work done is related to gravitational potential and kinetic energies? Also discuss the total…
A: 4. How work done is related to gravitational potential and kinetic energies? Let us consider we are…
Q: 16. Which of the following is/are incorrect about the concept of business? I) If the sign of the…
A: We are given 3 statements about work done. The thermodynamics first law is about law of conservation…
Q: Apply the work equation to determine the amount of work done, in N-m, by a 104 N force applied to…
A: Given data: Force (F) = 104 N Horizontal displacement (d) = 11.05 m Required: Work done (W)
Q: . Jordan is 32kg and walks up stairs. She travels a vertical distance of 2 meters. Determine how…
A:
Q: A force of 6.0 N is used to accelerate a mass of 1.0 kg from rest for a distance of 12m. The force…
A:
Q: 1. An object in a horizontal surface was moved by applying a constant force (in Newtons), F=8i + 5j.…
A: Write the given values with the suitable variables. F→=8i^+5j^ Nd=9 m Here, F is the force and d is…
Q: How much work would you do lifting a 4kg book 2m vertically as you place it on a shelf? How much…
A: mass m= 4kg Height h= 2m accleration due to gravity g= 9.8m/s^2
Q: 1. If you pushed a 20 kg box across the floor for a distance of 60 m with a force of 15 N how much…
A: #1 Given data: The mass of box is m=20 kg. The distance traveled by the box is d=60 m. The force…
Q: 1. Calculate the work done by a force of 30 N in lifting a load of 2kg to a height of 10m (g =…
A: Required work done by given forces to displace the objects.
Q: 2. Are you doing work in these situations? Also a question from your PHYS1111 class.
A: Work done is force that cause a body to move. It is the product of force and displacement.
Q: 2. Force and displacement are the two essential elements of work. Write true if the statement is…
A: False. Reason- work done depends upon force displacement and the angle between force and…
Q: An object in a horizontal surface was moved by applying a constant force (in Newtons), F = 8î + 5ĵ.…
A: The force applied to the object is Object displaced distance to the right is d = 9 m
Q: When is kinetic energy largest? Why?
A: Introduction: Kinetic energy is defined as the energy of an object due to its motion.
Q: 1. If person holds a weight for an hour, why would physicists say that no work was done?
A:
Q: 1. If 68 joules of work were necessary to move a 4 Newton crate, how far was the crate moved. 1b. A…
A:
Q: 11. You push down on a 4.0 N box against the floor for 2 minutes. How much work was done? How much…
A: The force applied, F=4 N The time for which the force is applied, t=2 min
Q: Describe a situation where an object is in motion but no physical work is being accomplished.…
A: Consider the situation where a person carrying a suitcase on his head and walking. Now for an…
Q: 1. Hans Full exerts 2.42 x 10³ J of work in pulling on a rope to drag his backpack to school across…
A: Given: Work done, W=2.42×103 J Force, F=22.9 N Displacement, d=129 m To determine angle.
Q: 5. If you tried to lift the object but couldn't, was any work done? Explain your answer.
A: Lets assume the force on the object to be F. And Displacement to be d. But as we couldnot lift the…
Q: Cite two examples in which a force is exerted on an object without doing any work on the object
A: Example 1 A boy whirling a stone tied to a rope in horizontal circle. In this case force applied…
Q: 3.The Work-Energy Principle states that work is equal to the change in kinetic energy. What unit…
A:
Q: 8. You drag a sled 72 m through level snow while pulling upward at 65° above the horrizontal with a…
A: Givenx=78 mθ=65°F=108.5 Nformula of work done , W=∫F→·dx→ if force is constant , W=F→·x→
Q: Two carts have the same mass. Both carts start at rest and are pushed until one cart is going two…
A: The work energy theorem states that the work done by the net force on a body is equal to change in…
Q: . Which of the following statements represent example of situation showing work? a. A child applies…
A: Work is said to be done when an object is displaced on applying external force . So ,for work…
Q: 5. A 2-kg object moved from rest to a speed of 10 m/s. a) Calculate the work done on the object? b)…
A:
Q: a person holds a 50 Newton object stationary for 10 seconds, 2 meters above the floor, what is the…
A: The work done is given as product of the force and displacement. W = F x d
Q: . Can a normal force on an object ever do work on the object? Explain.
A: The work done by an object is given as : Work = Force × displacementW = Fdcosθ
Q: Calculate the value of force applied if work done is 190 J and displacement is 12 m.
A: Work done by the force, W=190 J Displacement of the object, d=12 m Work done is the product of force…
Q: 4. A bag originally 60 kg of flour is lifted through a vertical distance of 9 m. While it is being…
A:
Q: 8). How much work can a 50.0 kg wrecking ball traveling at 5.00 m/s do o the building it strikes?…
A:
Step by step
Solved in 3 steps
