Suppose the coefficient of static friction between the road and the tires on a car is 0.774 and the car has no negative lift. What speed will put the car on the verge of sliding as it rounds a level curve of 33.1 m radius? Number Enter your answer in accordance to the question statement Units Choose the answer from the menu in accordance to the question statement This answer has no units° (degrees)mkgsm/sm/s^2NJWN/mkg·m/s or N·sN/m^2 or Pakg/m^3gm/s^3times

Suppose the coefficient of static friction between the road and the tires on a car is 0.774 and the car has no negative lift. What speed will put the car on the verge of sliding as it rounds a level curve of 33.1 m radius? Number Enter your answer in accordance to the question statement Units Choose the answer from the menu in accordance to the question statement This answer has no units° (degrees)mkgsm/sm/s^2NJWN/mkg·m/s or N·sN/m^2 or Pakg/m^3gm/s^3times

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

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 48P: Why is the following situation impossible? A 1.30-kg toaster is not plugged in. The coefficient of...

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Why is the following situation impossible? A 1.30-kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal countertop is 0.350. To make the toaster start moving, you carelessly pull on its electric cord. Unfortunately, the cord has become frayed from your previous similar actions and will break if the tension in the cord exceeds 4.00 N. By pulling on the cord at a particular angle, you successfully start the toaster moving without breaking the cord.
Question 1 (Given a drag coefficient of 0.42 kg/sec, the magnitude of the drag force (N) on a projectile moving with a speed of 8 m/s is) In question 1, measured from the positive x-axis (using counter-clockwise angles), if the direction of the projectile's velocity is 81 degrees, the direction (degrees) of the drag force is:
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.85 on the same curve. What is the maximum speed at which car B can negotiate the curve?
The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at 18°. The transition should be rounded with what minimum radius so that cars traveling 95 km/h will not leave the road. Can you draw the free body diagram to clearly show how mgcosθ is specifically derived I keep getting mgsin instead. FR =mgcosθ−FN
a=5 and b=1 1.Rudolph pulls a wagon in an inclined plane, 3a degrees of inclination. The weight of the wagon is 1ab N and the coefficient of kinetic friction is 0.3. Find the force exerted by Rudolph if he moves at a constant acceleration of 2m/s^2. Assume that the rope he used to pull the wagon is parallel with the plane.
Each of the following parts of Problem 1 refers to the same vehicle. Assume aerodynamic drag is zero, friction force on each of the four tires is equal, and the vehicle can be modeled as a particle. Also, assume it has modern traction control so the tires never actually slip and kinetic friction coefficient is irrelevant. a. Determine the distance travelled for the vehicle stopping on dry pavement from 30 mph to zero in 2.0 seconds. Assume acceleration is constant and provide your final answer in feet. b. Determine coefficient of friction for part a. Provide a supporting FBD. c. Determine the distance travelled from 30 mph to zero if the vehicle is on a snow covered road with coefficient of static friction = 0.10. Assume deceleration is constant and provide your final answer in feet. d. Use the coefficient of friction from part b to determine maximum tangential velocity on a 200-foot diameter skid pad. Provide your final answer in mph. e. Determine the minimum radius curve that the…
Car A uses tires for which the coefficient of static friction is 0.217 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 12.3 m/s. Car B uses tires for which the coefficient of static frictionis 0.767 on the same curve. What is themaximum speed at which car B can negotiate the curve?
A 3.5 kg block is pushed along a horizontal floor by a force −→F of magnitude 15 N at an angle θ = 40◦ with the horizontal. The coefficient of kinetic friction between the block and the floor is 0.25. Calculate the magnitudes of a) the frictional force on the block from the floor and b) the block’s acceleration.
A participant in a winter sporting event pulls a 43 kg brick of ice in the positive horizontal direction with a cable over his shoulders over' a frozen lake as shown in the figure. Assume the coefficients of static and kinetic friction are µs=0.1 and µk=0.03. a.) Calculate the minimum force F he must exert to get the brick sliding in newtons. b.) What is its acceleration in m/s2 once it starts to move, if that force is maintained?
The drag force for falling objects due to air friction depends on the velocity of the object and is given by the equation [Fdrag = bv] where b is a constant that depends on the fluid through which the object moves and the radius of the object. (a) Find the terminal speed (in m/s) of an object of mass 54 kg for which b = 17 kg/s. (b) Will the terminal speed be different if the object's initial speed is different? Yes or No?
A cardboard box slides along a wood floor with an initial velocity of 15.0 m/s , and comes to rest after traveling 30 m along the floor. What is the coefficient of kinetic friction between the floor and the box? Assuming g=10m/s2{"version":"1.1","math":"<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>m</mi><mo>/</mo><msup><mi>s</mi><mn>2</mn></msup></math>"} What is the acceleration of the cardboard when it slides along the floor? a) 10m/s^2 b) -3.75m/s^2 c) 2.0m/s^2 d) 3.75 m/s^2
A man is exerting a constant 150 N horizontal force to push a 20 kg wooden crate upwards along a rough 30-degree ramp. The coefficients of non-sliding (static) and sliding (kinetic) friction are 0.2 and 0.1, respectively. The push is sufficient to move the crate up the ramp. a. Which of the following best approximates the amount of frictional force between the crate and the ramp? b. Which of the following best approximates the magnitude of the acceleration (in m/s2 ) of crate?