An object moving in the ry-plane is subjected to the force F = (2xyî +æ²j) N, where a and y are in m.

Given: A shopper pushes a grocery cart for a distance 21 m at constant speed on level ground, against a 37.5 N frictional force. He pushes in a direction 22.5° below the horizontal. What is the work done on the cart by friction, in joules?  What is the work done on the cart by the gravitational force, in joules?  What is the work done on the cart by the shopper, in joules?  Find the magnitude of the force, in newtons, that the shopper exerts on the cart.  What is the total work done on the cart, in joules?

A particle is acted on by the constant force F = (8.00î + 1.00ĵ) N as it moves from position O to C along several different paths shown in the figure below. Determine the work done on the object by the force as the object moves from position O to C along the following paths. (Include the sign of the values in your answers.) (a) path OAC J(b) path OBC J(c) path OC J(d) From the above, we may conclude that the given force is which of the following? not a conservative force   There is not enough information to tell.     a conservative force

The force F = (6.82 N)i + (4.75 N)j acts on a particle as it moves along a straight line from Cartesian coordinate (0.77 m, 1.58 m) to (7.38 m, 8.37 m). What is the work done, in joules, by the force?

How much work is done on the book by friction during a displacement of 3.6 m to the left? The book now slides 3.6 m to the right, returning to its starting point. During this second 3.6 m displacement, how much work is done on the book by friction? What is the total work done on the book by friction during the complete round trip? On the basis of your answer to the previous question, would you say that the friction force is conservative or nonconservative?

samuel has is observing an object. you please determine the work that is done by F = 5i -2j+0k which is a force that is constant in moving samuel's object in a plane . samuel tells you that the object moves due to the force in a straight line in the plane. the straight line connects the points A(1,2) and the point B(3,7). I already know that the correct answer to this question is zero. but the question I have is WHY is it zero. explain why the work is zero in this senario. Not how you get to the answer zero, but why the answer zero can make sense in this scenario. is the forece perpendicualr to the direction? i am confused please help and i will like.

A force with a magnitude of 60 N is applied at an angle theta= 50 to the horizontal to an object initially at rest, displacing it 5 m from its initial location. The object weighs 50 kilograms and there is no friction. After this displacement, the force is no longer applied. Determine the work being done by the force? How fast is the object when the force is removed? When the force is no longer exerted, the item falls down a 10-meter-high cliff. When it reaches the ground, what is its velocity? When it strikes the ground, it slides along the ground, which has a coefficient of kinetic friction of 0.25. How far does it go before coming to a stop?

An object moves in the x-y plane while acted on by the force F(x,y) = k1yi + k2xj, where k1 and k2 are constants with units of N/m. The object moves along a straight line path from Cartesian coordinate (x1, y1) to (x2, y2). Write an expression for the work done on the object by this force.