A 4-kg object is slowly lifted 1.5 m. How much work is done against gravity? Repeat if the object is lowered instead of lifted.

Q: You apply a constant force of (47 N) î - (59 N) ĵ to a loaded supermarket pushcart as it undergoes a…

A:

Q: which of the following is  negative work being done?   Question 10 options:   A man pushes with a…

A: Correct option is (c) An object is pushed with a force of 25 N when the frictional force is a…

Q: A 2.5 kg crate sliding along the floor has an initial velocity of 2.1 m/s in the +x direction.…

A:

Q: In 1990, Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…

A:

Q: Q12: A time-dependent force F = 6t acts on a particle of mass 1 kg. If the particle starts from…

A:

Q: A 1.9 kg book is lying on a 0.75m high table. You pick it up and place it on a bookshelf 2.1 m above…

A:

Q: Is work done whenever a force is exerted? Explain.

A: Force F is applied to body to displace it from one position to another position, then work done on a…

Q: 1. (a) How much work is done by the horizontal force shown in the figure on the block when the force…

A: Fp= 150 N  S= 5m  M=18kg  Angle is 32°

Q: A 75-kg man is carrying a 50-kg crate as he ascends to the sixth floor of a building through an…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Problem: Jennifer lifts a 2.5-kg carton of cat litter from the floor to a height of 0.75 m. (a) How…

A: Answer Given data  Mass m = 2.5 kg Height h = 0.75 m We have to find how much total work must be…

Q: A Net Force Fnet=(x-3x2)i + (2y2-y3)j acts on a 3.5 kg particle. a) Calculate the net work done on…

A:

Q: A 40 kg crate filled with books is pushed along the floor by exerting a force of 227 N at an angle…

A:

Q: A man lifts a 12 kg bucket of water at constant speed, from the bottom of a hole that is 17m deep.…

A:

Q: A 85.5-kg person rides an elevator up one level, going up a total distance of 3.02 m. How much…

A:

Q: Early one October, you go to a pumpkin patch to select your Halloween pumpkin. You lift the 3.0 kg…

A: Assuming pumpkin is lifted and moved on level ground such that its kinetic energy does not change,…

Q: In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…

A:

Q: person pushes a box up an incline with constant force, and after calculating how much work they did…

A: Given work done by the person is greater than the work done by gravity. When we move a body on an…

Q: A 5 kg ball is shot straight up with an initial speed of 20 m/s . When the ball reaches height 10 m,…

A:

Q: A man pulls a 100-N crate up a frictionless 30° slope 5- m high, as shown. Assuming that the crate…

A: This problem can be solved using the weight decomposition and then finding the tension in the…

Q: X A 10 Kg object is raised to a height of 2m in 5s. What is the rate of work done? * 10 『- 10%メ 10…

A: Given, mass of an object, m = 10 kg height above the ground, h = 2 m time taken, t = 5 s

Q: A man starts at ground level and carries a 20 kg box up a flight of stairs to a height of 3.6 m. He…

A:

Q: Can the normal force on an object ever do work? Explain.

A: The work done on any object is given by W=Fd

Q: Do the following situations result in positive work, negative work, or zero work? Force is…

A:

Q: A 1.9 kg book is lying on a 0.75mm high table. You pick it up and place it on a bookshelf 2.1 mm…

A: Given value--- mass = 1.9 kg. initial height from ground = 0.75mm final height from ground = 2.1mm.…

Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A:

Q: A car with the mass m=1600kg coasts down an incline from an initial height of h=7m with an initial…

A: W=12mv2f-mgh-12mv2i

Q: The graph in the figure below shows the magnitude of the force ex- erted by a given spring as a…

A: We need to calculate the work done in stretching the spring by the given amounts in parts a and b.

Q: Assume that a single force acts on an object of mass m. This force accelerates it from rest to a…

A:

Q: An object is placed to a shelf from the ground which is 1.8 m higher. find out how much work is done…

A: