A car moving at 37 km/h negotiates a 150 m -radius banked turn
designed for 60...
A car moving at 37 km/h negotiates a 150 m -radius banked turn
designed for 60 km/h. What coefficient of friction is needed to
keep the car on the road?
A curve of radius 40 m is banked for a design speed of 60 km/h.
If the coefficient of static friction is 0.30 (wet pavement), at
what range of speeds can a car safely make the curve?
minimum
maximum
A curve of radius 90 m is banked for a design speed of 100 km/h.
If the coefficient of static friction is 0.30 (wet pavement), at
what range of speeds can a car safely make the curve?
A curve of radius 69 m is banked for a design speed of 78 km/h.
If the coefficient of static friction is 0.30 (wet pavement), at
what range of speeds can a car safely make the curve? [Hint:
Consider the direction of the friction force when the car goes too
slow or too fast.]
A curve of radius 69 m is banked for a design speed of 80 km/h .
if the coefficient of static friction is 0.33 (wet pavement) at
what range of speeds can a car safely make the curve?
A curve of radius 70 m is banked for a design speed of 100 km/h
. If the coefficient of static friction is 0.33 (wet pavement), at
what range of speeds can a car safely make the curve?
a
curve of radius 68 m is banked for a design speed of 85 km/h. If
the coefficient of static friction is 0.40 (wet pavement), at what
range of speeds can a car safely make the curve? [Hint: Consider
the direction of the friction force when the car goes too slow or
too fast.] EXPRESS answer in km/h
A curve of radius 75 m is banked for a design speed of 100 km/h
.
If the coefficient of static friction is 0.36 (wet pavement), at
what range of speeds can a car safely make the curve?
[Hint: Consider the direction of the friction force when
the car goes too slow or too fast.]
A curve of radius 69 mm is banked for a design speed of 76
km/hkm/h .
Part A
If the coefficient of static friction is 0.28 (wet pavement), at
what range of speeds can a car safely make the curve?
[Hint: Consider the direction of the friction force when
the car goes too slow or too fast.]
Express your answers using two significant figures. Enter your
answers numerically separated by a comma.
The minimum stopping distance for a car from an initial 100 km/h
is 60 m on level ground. What is the stopping distance when it
moves (a) down a 10 degree incline; (b) up a 10 degree incline ?
Assume that the initial speed and the surface are unchanged.
A highway curve with a radius of 450 m is banked properly for a
car traveling 80 km/h. If a 1560- kg Porshe 928S rounds the curve
at 250 km/h, how much sideways force must the tires exert against
the road if the car does not skid?