A bedroom bureau with a mass of 45.0 kg, including drawers and clothing, rests on the floor. (a) If the coefficient of static friction is 0.450, what is the magnitude of the minimum horizontal force that a person must apply to start the bureau moving to the right? (b) If the drawers and clothing, with 17.0 kg mass, are removed before the bureau is pushed to the right, what is the new minimum magnitude?
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- Shown below is a body of mass 5.0 kg under the influence of the forces FA, FB and mg. If the body accelerates to the left at 37 m/s2, what are FA and FB? (Express your answers in vector form in newtons. Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign.)A telephone pole has three cables pulling as shown from above, with and (a) Find the net force on the telephone pole in component form. (b) Find the magnitude and direction of this net force.The figure above shows free-body diagrams for the cart mc and the hanging mass mh in terms of the gravitational force mg, tension T, normal force N, and frictional force Ff=μkN. Q1: Based on the mc free-body diagram, type an expression for the horizontal acceleration of the cart. Q2: Based on the mh free-body diagram, type an expression for the vertical acceleration of the hanging mass. Q3: As shown in the first figure, the horizontal acceleration of the cart to the right must be equal to the downward vertical acceleration of the hanging mass if the string does not stretch. Given that both the cart and the hanging mass have the same acceleration, eliminate the tension force (T) from your answers to Q1 and Q2 to find an expression for the acceleration only in terms of mh, mc, μk, and g.
- The directions of the four forces and the acceleration must be identified.Make a free-body diagram. Please use the blue vector to specify forces and the pink vector for acceleration. Make sure to label each vector with none, mg, fk, a, FN, or FPushing.Which one(s) of the following force diagrams depict an object moving to the right with constant speed? Write all possible answers (if any) in the blank: ________________. Explain your answer(s) to this question.The directions of the two forces and the acceleration must be identified. Make a free-body diagram. Please use the blue vector to specify forces and the pink vector for acceleration. Make sure to label each vector with none, mg, Flift or a.
- Two forces are applied to a car in an effort to move it, as shown in the figure below. (Let F1 = 440 N and F2 = 366 N. Assume up and to the right are in the positive directions.) (a) What is the resultant vector of these two forces? (b) If the car has a mass of 3,000 kg, what acceleration does it have? Ignore friction.The diagram shows the forces acting on a lorry as it travels along a flat road. a. Two of the forces have effects that cancel eachother out. Which two? Explain your answer. b. What is the resultant force of the lorry? Give it's magnitude and direction c. What effect will this resultant force have on the speed at which the lorry is travelling?Two blocks are connected by a (massless) string that runs over a (massless, frictionless) pulley as shown. Assume there is no friction between block 1 and the surface of the incline. If m1 = 3.7 kg and m2 = 6.7 kg, what is the tension in the string? Express your answer in N, to at least one digit after the decimal point.
- A contestant in a winter sporting event pulls an m kg block of ice across a frozen lake by applying a force F at an angle θ above the horizontal as shown. Assume that the coefficient of static friction for ice on ice is 0.0300, and the coefficient of kinetic friction for the same is 0.0100. Let to the right be the positive x direction and up be the positive y direction for your equations. Please use the interactive area below to draw a free body diagram to represent the situation where the contestant is pulling, but the block has not yet started to move. Use Fs for the force of static friction and Fk for the force of kinetic friction if they are needed for your free body diagram. 17% Part (b) Select the correct expression for the net force in the horizontal direction, ΣFx. 17% Part (c) Select the correct expression for the net force in the vertical direction, ΣFy. 17% Part (d) Obtain a numeric value, in newtons, for the magnitude of the maximum applied force, F, consistent…If the tension in rope 1 is 220 N , what is the tension in rope 2? Express your answer to two significant figures and include the appropriate units.How do I find the net force on this object and draw the vector? Please explain step by step because I'm struggling with this concept.