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Sort the following quantities as known, to find, or unneeded. Let m and v be the mass and speed of the car, re...
A 1500-kg car drives at 30 m/s around a flat circular track 300 m in diameter. What are the magnitude and direction of...
A 1500-kg car drives at 30 m/s around a flat circular track 300 m in diameter. What are the magnitude and direction of the net force on the car? Sort the following quantities as known, to find, or unneeded. Let m and v be the mass and speed of the car, respectively; μs is the coefficient of static friction, r is the radius of the circular path, n is the magnitude of the normal force acting on the car, and...
Problem A car travels at a constant speed of 29.5 mi/h (13.2 m/s) on a level...
Problem A car travels at a constant speed of 29.5 mi/h (13.2 m/s) on a level circular turn of radius 46.0 m, as shown in the bird's-eye view in Figure 7.13a. What minimum coefficient of static friction, Aus, between the tires and the roadway will allow the car to make the circular turn without sliding? Strategy In the car's free-body diagram (Fig. 7.13b) the normal direction is vertical and the tangential direction is into the page (step 2). Use Newton's...
Example 7.7 Buckle Up for Safety Goal Calculate the frictional force that causes an object to...
Example 7.7 Buckle Up for
Safety
Goal Calculate the frictional force that
causes an object to have a centripetal acceleration.
Problem A car travels at a constant speed of 31.5
mi/h (14.1 m/s) on a level circular turn of radius 55.0 m, as shown
in the bird's-eye view in Figure 7.13a. What minimum coefficient of
static friction, µs, between the tires and the
roadway will allow the car to make the circular turn without
sliding?
Strategy In the car's free-body...
A 1500-\rm kg car drives at 30 \rm m/s around a flat circular track 300 \rm m in diameter. What are the magnitude and d...
A 1500-\rm kg car drives at 30 \rm m/s around a flat circular track 300 \rm m in diameter. What are the magnitude and direction of the net force on the car? 9000N Since the net force is equivalent to the force of static friction, your answer to Part D is the magnitude f_s. Based on this value, what is the minimum coefficient mu_s of static friction between the road and the car?
1) A car with mass m = 1000 kg is traveling around a circular curve of...
1) A car with mass m = 1000 kg is traveling around a circular curve of radius r = 990 m when it begins to rain. The coefficients of static friction between the road and tires is μd = 0.66 when dry and μw = 0.26 when wet. a) Write an expression for the maximum magnitude of the force of static friction Ff acting on the car if μs is the coefficient of friction. b) What is the maximum tangential...
Brake or turn? Figure 6-45 depicts an overhead view of a car's path as the car...
Brake or turn? Figure 6-45 depicts an overhead view of
a car's path as the car travels toward a wall. Assume that the
driver begins to brake the car when the distance to the wall is
d = 109 m, and take the car's mass as m = 1430
kg, its initial speed as v0 = 37.0 m/s, and the
coefficient of static friction as μs = 0.530.
Assume that the car's weight is distributed evenly on the four
wheels,...
3. A car is driving at a speed of 20 m/sec on a circular horizontal flat...
3. A car is driving at a speed of 20 m/sec on a circular horizontal flat (unbanked) road of radius 200 m. (a) What minimum coefficient of static friction will permit the car to follow the circular path without skidding? (b) If the road had a radius of 32 m, what is the maximum speed of the car without skidding? (c) If the road was banked (not flat), could the car go faster? Explain your answer Possibly (but not necessarily)...
Please show and explain work. A driver is turning around a curve of radius 300 in...
Please show and explain work.
A driver is turning around a curve of radius 300 in on Hat ground. The 1500 kg car is trawling a constant speed of 30 m/s. What is the magnitude and direction of the force causing the car to move in a circular path? What type of force is this? (Normal, friction, tension, etc...) If the static friction coefficient is 0.7, how fast could the car take the turn without slipping or deviating from the...
The car shown in the figure has mass m(this includes the mass of the wheels). The wheels have radius r, mass mw, and m...
The car shown in the figure has mass m(this includes
the mass of the wheels). The wheels have radius r, mass
mw, and moment of inertia
I=kmwr2. Assume that the axles
apply the same torque ? to all four wheels. For
simplicity, also assume that the weight is distributed uniformly so
that all the wheels experience the same normal reaction from the
ground, and so the same frictional force.
Part A
If there is no slipping, a frictional force must...
(9.2.70) A car drives around a circular track of radius 50 m. The car starts at...
(9.2.70) A car drives around a circular track of radius 50 m. The car starts at rest at time t = 0, and its speed increases at a rate of 3.00 m/s. (a) Draw a top view illustrating the motion of the car around the circle, and also a side view showing a free-body diagram for the car (b) Find an equation which gives the magnitude of the net acceleration vector as a function of time (incorporating both radial and...
Problem A car travels at a constant speed of 29.5 mi/h (13.2 m/s) on a level circular turn of radius 46.0 m, as shown in the bird's-eye view in Figure 7.13a. What minimum coefficient of static friction, Aus, between the tires and the roadway will allow the car to make the circular turn without sliding? Strategy In the car's free-body diagram (Fig. 7.13b) the normal direction is vertical and the tangential direction is into the page (step 2). Use Newton's...
Example 7.7 Buckle Up for
Safety
Goal Calculate the frictional force that
causes an object to have a centripetal acceleration.
Problem A car travels at a constant speed of 31.5
mi/h (14.1 m/s) on a level circular turn of radius 55.0 m, as shown
in the bird's-eye view in Figure 7.13a. What minimum coefficient of
static friction, µs, between the tires and the
roadway will allow the car to make the circular turn without
sliding?
Strategy In the car's free-body...
Brake or turn? Figure 6-45 depicts an overhead view of
a car's path as the car travels toward a wall. Assume that the
driver begins to brake the car when the distance to the wall is
d = 109 m, and take the car's mass as m = 1430
kg, its initial speed as v0 = 37.0 m/s, and the
coefficient of static friction as μs = 0.530.
Assume that the car's weight is distributed evenly on the four
wheels,...
3. A car is driving at a speed of 20 m/sec on a circular horizontal flat (unbanked) road of radius 200 m. (a) What minimum coefficient of static friction will permit the car to follow the circular path without skidding? (b) If the road had a radius of 32 m, what is the maximum speed of the car without skidding? (c) If the road was banked (not flat), could the car go faster? Explain your answer Possibly (but not necessarily)...
Please show and explain work.
A driver is turning around a curve of radius 300 in on Hat ground. The 1500 kg car is trawling a constant speed of 30 m/s. What is the magnitude and direction of the force causing the car to move in a circular path? What type of force is this? (Normal, friction, tension, etc...) If the static friction coefficient is 0.7, how fast could the car take the turn without slipping or deviating from the...
The car shown in the figure has mass m(this includes
the mass of the wheels). The wheels have radius r, mass
mw, and moment of inertia
I=kmwr2. Assume that the axles
apply the same torque ? to all four wheels. For
simplicity, also assume that the weight is distributed uniformly so
that all the wheels experience the same normal reaction from the
ground, and so the same frictional force.
Part A
If there is no slipping, a frictional force must...
(9.2.70) A car drives around a circular track of radius 50 m. The car starts at rest at time t = 0, and its speed increases at a rate of 3.00 m/s. (a) Draw a top view illustrating the motion of the car around the circle, and also a side view showing a free-body diagram for the car (b) Find an equation which gives the magnitude of the net acceleration vector as a function of time (incorporating both radial and...
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