College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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forces of 6 lbs, 2 lbs, and 4 lbs act on an object. what are the maximum and minimum possible net forces on the object? Explain your answer.
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- f the mass of the box is 2.55 kg, the angle of the incline is 40o, and the coefficient of static friction, , between the crate and the incline is 0.37, rank the forces according to their magnitudes. Prompt 1The weight of the block Answer for prompt 1 The weight of the block Prompt 2The Static Friction Force between the block and the ramp Answer for prompt 2 The Static Friction Force between the block and the ramp Prompt 3The Normal Force between the block and the ramp Answer for prompt 3 The Normal Force between the block and the ramp Prompt 4The Tension in the stringarrow_forwardA car of mass 800 kg as shown in the figure is subject to three forces F1, F2, and F3. The two forces F1=1000 N and F2=500 N are directed along the +X direction. Third force F3 is not shown in the figure. Ignore the effect of frictional force exerted by the tires on the road. a) Suppose the car is stationary, then what is the direction and magnitude of the force F3? b) The car started moving and attained a velocity of +500 m/s in 10 second due a change in F3. What will be the new direction and magnitude of the the force F3? c) How far does the car traveled during this 10 second time interval?arrow_forwardYou and your friend are moving a 82kg box across the floor at a constant speed. You are pushing on the box parallel to the ground with a force of 62N. Your friend has a rope tied to the box and they are pulling it at an angle of 37° to the ground with a force of 32N. Construct the free body diagram showing the force acting on the box in order to find the magnitude of normal force the floor excerts on the box.arrow_forward
- A horizontal (F = 12N) force pushes a block weighing (F, = 5.0N) against a vertical wall. The coefficient of static friction between the wall and the block is µg = 0.60, and the coefficient of kinetic friction is µk = 0.40. Assume that the block is not moving initially. %3D a) Draw a free body diagram of the block in the figure. b) What is the normal force (in unit vector notation) on the block from the walI? c) Will the block move? Please give your reason with calculation. d) In unit-vector notation, what is the force on the block from the wall?arrow_forwardThe heaviest invertebrate is the giant squid, which is estimated to have a weight of about 0.36 tons spread out over its length of 37 feet. What is its weight in newtons? Narrow_forwardAn object of mass m = 1.00 kg is observed to have an acceleration of a with a magnitude of 23.6 m/s² in a direction 0 = 63.5° east of north. The figure below shows a view of the object from above. The force F₂ acting on the object has a magnitude of 10.5 N and is directed north. Determine the magnitude and direction of the force F₁ acting on the object. 2 1 N magnitude direction East m F₁arrow_forward
- Two forces are exerted on an object: a force A with an x-component of 9.00[N] and a y-component of -2.40[N], and a force B with an x-component of -13.30[N] and a y-component of 23.60[N]. Assuming these are the only two forces on the object, what is the magnitude of the net force on the object? Express your answer in N.arrow_forwardA student is trying to find the force on a person at the top of an inverted roller coaster, where the person is upside down at the top, and writes the equation S + mg = mv 2/r. What would you say about that? A Yes, that’s correct. B Close, but it should be written S - mg = mv2/r. C Close, but it should be written mg - S = mv2/r.arrow_forwardA zoologist pulls a block of hay towards an animal enclosure. The zoologist pulls at the angle of 27 degrees above the horizontal with a constant speed of 1 m/s. The mass of the hay is 60 kg and the coefficient of friction between the hay and the concrete is 0.29What is the value of the force F the zoologist is applying? please include a diagram using coordinate system and vectors, implied values, and known values.arrow_forward
- You and some friends are trying to help another friend pull his car out some mud by attaching three ropes tohis car. One friend insists that the three ropes should be attached in the fashion shown in the figure. Theforce applied by each rope is also shown in the figure. If the car has a mass of 1500 kg, what is the magnitudeand direction of the acceleration of the car?arrow_forwardIf the child has a mass of 19.4 kg, calculate the magnitude of the force in newtons the mother exerts on the child under the following conditions. (b) The elevator accelerates upward at 0.762 m/s?. N Calculate the ratio of this force to the weight of the child. force child's weight (c) The elevator moves upward at a constant speed. Calculate the ratio of this force to the weight of the child. force child's weightarrow_forwardSubject: physicsarrow_forward
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