11.80 A car travels with a steady speed of t over a vertical curve whose radius of curvature is 100 m as shown. If the magnitude of acceleration of the car is not to exceed 0.5g, determine the maximum value of e permitted.

Elements Of Electromagnetics
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Dynamics Question 11.81

 

500
Kinematics of Particles
11.80
A car travels with a steady speed of v over a vertical curve whose radius of
curvature is 100 m as shown. If the magnitude of acceleration of the car is not to
exceed 0.5g, determine the maximum value of v permitted.
11.81* Upon entering a curve of 200-m radius at a speed of 72 km/h, a motorist
applies his brakes to decrease his speed at a constant rate of 2 m/s. Determine the
magnitude of the total acceleration of the car when its speed is 54 km/h.
100 m
11.82 A racing car travels along the curve ABC of radius 500 m as shown. The
speed of the car is increased at a constant rate from 108 km/h at A to 144 km/h at
C. Determine the magnitude of the total acceleration of the car when it passes
through the point B.
Fig. P11.80
Fig. P11.87
A pin P is confined
11.88
horizontal slot in the guide C
screw with a constant down
pin P when 6
60°.
1 km
250 m
150 m
A
B
D.
108 km / h
144 km / h
400 mm
500 m
8 km
Fig. P11.88
Fig. P11.82
Fig. P11.83
11.89
booster rockets and is tr
A space shuttl
11 02
tile travels along the trajectory AB
surface of
surements give r
10
Transcribed Image Text:500 Kinematics of Particles 11.80 A car travels with a steady speed of v over a vertical curve whose radius of curvature is 100 m as shown. If the magnitude of acceleration of the car is not to exceed 0.5g, determine the maximum value of v permitted. 11.81* Upon entering a curve of 200-m radius at a speed of 72 km/h, a motorist applies his brakes to decrease his speed at a constant rate of 2 m/s. Determine the magnitude of the total acceleration of the car when its speed is 54 km/h. 100 m 11.82 A racing car travels along the curve ABC of radius 500 m as shown. The speed of the car is increased at a constant rate from 108 km/h at A to 144 km/h at C. Determine the magnitude of the total acceleration of the car when it passes through the point B. Fig. P11.80 Fig. P11.87 A pin P is confined 11.88 horizontal slot in the guide C screw with a constant down pin P when 6 60°. 1 km 250 m 150 m A B D. 108 km / h 144 km / h 400 mm 500 m 8 km Fig. P11.88 Fig. P11.82 Fig. P11.83 11.89 booster rockets and is tr A space shuttl 11 02 tile travels along the trajectory AB surface of surements give r 10
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