Question

A curved road has a radius of 0.297 km. A 530.7 kg truck moves around the curve at a speed of 90.9 km/hr with no acceleration. What is the minimum coefficient of friction that will prevent the truck from sliding left-to-right?

Answer #1

A 1000-kg car is traveling around a curve having a radius of 100
m that is banked at an angle of 15.0°. If 30m/s is the maximum
speed this car can make the curve without sliding, what is the
coefficient of friction between the road and the tires?

A curve of radius 20 m is banked so that a 1100 kg car traveling
at 30 km/h can round it even if the road is so icy that the
coefficient of static friction is approximately zero. The
acceleration of gravity is 9.81 m/s 2 .
Find the minimum speed at which a car can travel around this
curve without skidding if the coefficient of static friction
between the road and the tires is 0.3. Answer in units of m/s.

2. A 1500 kg truck is rounding a curve
of radius 40 m. Assume the road is flat. The coefficient of static
friction between the tires and the road is 0.8. A weight is hanging
on a string from the ceiling. What is the largest angle the string
can make from the vertical?

A curve of radius 20 m is banked so that a 1000 kg car traveling
at 60 km/h can round it even if the road is so icy that the
coefficient of static friction is approximately zero. The
acceleration of gravity is 9.81 m/s 2 . ? Find the minimum speed at
which a car can travel around this curve without skidding if the
coefficient of static friction between the road and the tires is
0.2. Answer in units of...

A 1600 kg car travels around a 200. m radius curve with a speed
of 15 m/s. Find the following:
a. Free body diagram from viewing the back of the car.
b. Acceleration of the car.
c. Frictional force on the car at this velocity.
d. Minimum coefficient of static friction for the car to travel
around the curve at this speed.

An automobile moves on a circular track of radius 1.04 km. It
starts from rest from the point (x, y) = (1.04 km, 0 km) and moves
counterclockwise with a steady tangential acceleration such that it
returns to the starting point with a speed of 29.2 m/s after one
lap. (The origin of the Cartesian coordinate system is at the
center of the circular track.)
What are the car's position and velocity vectors when it is
one-sixth of the way...

7. A 500 kg car goes around turn in the road that has a radius
of curvature of 5 m. The car is traveling at a constant speed of 10
m/s.
(i) What is the centripetal force required to keep the car from
sliding out as it goes around the turn?
(ii) What must be the coefficient of friction between the tires
of the car and the road in order for the car to not sliding as it
goes around...

1) You are making a circular turn in your car on a horizontal
road when you hit a big patch of ice, causing the force of friction
between the tires and the road to become zero. While the car is on
the ice, itA) moves along a straight-line path away from the center of the
circle.B) moves along a straight-line path toward the center of the
circle.C) moves along a straight-line path in its original
direction.D) continues to follow a...

A box (400 kg) sits inside the trailer of a
semitruck traveling at a speed of 20 m/s (~ 44
mph). Suddenly, a car in front of the truck stops in the road. The
driver of the truck hits the brakes to bring the truck to a stop.
Assume that the coefficient of static friction
µs = 0.7 between the box and the floor of the
trailer. Assume g = 10 m/s2.
When the truck slows down while traveling left,...

1) A Red Car and a Blue Truck are driving down a winding road.
Through the first curve in the road, the Red Car is driving twice
as fast as the Blue Truck. The second curve is half the radius of
the first, which causes the Red Car to slow down to half the speed
of the Blue Truck to drive around the curve. Rank the acceleration
each vehicle experiences in each curve from largest to
smallest.
-blue truck in...

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