A 610 kg car pulling a 545 kg trailer accelerates forward at a rate of 2.25 m/s2. Assume frictional forces on the trailer arenegligible. Ignore air drag.(a) Calculate the net force (in N) on the car.magnitudeNdirection-Select---(b) Calculate the net force (in N) on the trailer.magnitudeNdirection---Select---(c) What is the force (in N) exerted by the trailer on the car?magnitudeNdirection---Select---(d) What is the resultant force exerted by the car on the road? (Assume that the forward direction is along the +x-direction tothe right and that the +y-direction points upward. Enter the magnitude in N and the direction in degrees measured from theleft of the -y-direction.)magnitudeNdirection° (measured from the left of the -y-direction)

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Description: A 610 kg car pulling a 545 kg trailer accelerates forward at a rate of 2.25 m/s2. Assume frictional forces on the trailer arenegligible. Ignore air drag.(a) Calculate the net force (in N) on the car.magnitudeNdirection-Select---(b) Calculate the net

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A 610 kg car pulling a 545 kg trailer accelerates forward at a rate of 2.25 m/s2. Assume frictional forces on the trailer are negligible. Ignore air drag. (a) Calculate the net force (in N) on the car. magnitude N ....... direction ---Select-- (b) Calculate the net force (in N) on the trailer. magnitude direction ---Select--- (c) What is the force (in N) exerted by the trailer on the car? magnitude direction ---Select---

A 610 kg car pulling a 545 kg trailer accelerates forward at a rate of 2.25 m/s2. Assume frictional forces on the trailer are negligible. Ignore air drag. (a) Calculate the net force (in N) on the car. magnitude N ....... direction ---Select-- (b) Calculate the net force (in N) on the trailer. magnitude direction ---Select--- (c) What is the force (in N) exerted by the trailer on the car? magnitude direction ---Select---

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 25P: In Example 4.6, we investigated the apparent weight of a fish in an elevator. Now consider a 72.0-kg...

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Show that the acceleration of any object down an incline where friction behaves simply (that is, where fk=kN ) is a=g(sinkcos). Note that the acceleration is independent of mass and reduces to the expression found in the previous problem when friction becomes negligibly small (k=0).
An automobile driver traveling down an 8% grade slams on his brakes and skids 30 m before hitting a parked car. A lawyer hires an expert who measures the coefficient of kinetic friction between the tires and road to be k = 0.45. Is the lawyer correct to accuse the driver of exceeding the 25-MPH speed limit? Explain.
(a) Give an example of different net external forces acting on the same system to produce different accelerations. (b) Give an example of the same net external force acting on systems of different masses, producing different accelerations. (c) What law accurately describes both effects? State it in words and as an equation.
An object of mass m is dropped al t = 0 from the roof of a building of height h. While the object is falling, a wind blowing parallel to the face of the building exerts a constant horizontal force F on the object. (a) At what time t does the object strike the ground? Express t in terms of g and h. (b) Find an expression in terms of m and F for the acceleration ax of the object in the horizontal direction (taken as the positive x direction). (c) How far is the object displaced horizontally before hitting the ground? Answer in terms of m, g, F, and h. (d) Find the magnitude of the objects acceleration while it is falling, using the variables F, m, and g.
In Example 4.6, we investigated the apparent weight of a fish in an elevator. Now consider a 72.0-kg man standing on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.20 m/s in 0.800 s. It travels with this constant speed for the next 5.00 s. The elevator then undergoes a uniform acceleration in the negative y direction for 1.50 s and comes to rest. What does the spring scale register (a) before the elevator starts to move, (b) during the first 0.800 s, (c) while the elevator is traveling at constant speed, and (d) during the time interval it is slowing down?
A force acts on a car of mass m so that the speed v of the car increases with position x as v=kx2 where kis constant and all quantities are in SI units. Find the force acting on the car as a function of position.
The manager of a department store is pushing horizontally with a force of magnitude 200 N on a box of shirts. The box is sliding across the horizontal floor with a forward acceleration. Nothing else touches the box. What must be true about the magnitude of the force of kinetic friction acting on the box (choose one)? (a) It is greater than 200 N. (b) It is less than 200 N. (c) It is equal to 200 N. (d) None of those statements is necessarily true.
You are pulling a string with a force of 209N attatched to a heavy box of mass 27Kg across your carpeted floor. The coeffiecent of kinetic friction between the object and the floor is 0.29. The string attached is at an angle of 48 degrees with respect to the horizontal ground. With what acceleration is the box attatched to the string. -4.05 m/s^2 -5.75 m/s^2 -4.41 m/s^2 -4.01 m/s^2 -5.18 m/s^2
A 610 kg car pulling a 550 kg trailer accelerates forward at a rate of 2.29 m/s2. Assume frictional forces on the trailer are negligible. Ignore air drag. (a) Calculate the net force (in N) on the car. magnitude Ndirection ---Select--- forward backward (b) Calculate the net force (in N) on the trailer. magnitude Ndirection ---Select--- forward backward (c) What is the force (in N) exerted by the trailer on the car? magnitude Ndirection ---Select--- forward backward (d) What is the resultant force exerted by the car on the road? (Assume that the forward direction is along the +x-direction to the right and that the +y-direction points upward. Enter the magnitude in N and the direction in degrees measured from the left of the −y-direction.) magnitude Ndirection ° (measured from the left of the −y-direction)
A 21.0-kg box is released on a 26 degree incline and accelerates down the incline at 0.24 m/s2 . a) Find the friction force impeding its motion. b) Determine the coefficient of kinetic friction.
3B. 100-N block on a rough 30º-incline is acted upon by a force P as shown causing it to accelerate at 2 m/s down the plane. The coefficient of kinetic friction is 0.30. (a) Draw the FBD of the block (b) Find the magnitude of P. 20 30
3B. 100-N block on a rough 30º-incline is acted upon by a force P as shown causing it to accelerate at 2 m/s2 down the plane. The coefficient of kinetic friction is 0.30. (a) Draw the FBD of the block (b) Find the magnitude of P. 20 30