1. A driver is travelling at 50 mph is 80 m from a wall ahead, if the driver applies the brake immediately at t-2secs, and begins slowing down at 10m/s^2.a. Find the distance from the stopping point to the wall.b. Determine the braking time or the time during deceleration.c. Determine the average skid resistance, assuming brake efficiency of 70%.

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Answered: 1. A driver is travelling at 50 mph is…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Find at what maximum speed a vehicle can move round a curve of 50 m radius without slip on a road banked with 1 in 10 slope? Take coefficient of friction between the tyres of the vehicle and the road equal to 0.4 Correct answer is 57.53 kph
The coefficients of friction between the load and the flat-bed trailer shown are 0.35 (static) and 0.30 (kinetic). Knowing that the speed of the rig is 72 km/h , at what deceleration in m/s^ 2 must the truck apply for a shortest distance in which the rig can be brought to a stop if the load is not to shift.
The 2975 -lb. car is parked on the sloped street. The brakes are applied to both its front and rear wheels. If the coefficient of statics friction between the car’s tires and the road is μ=0.8, what is the steepest slope (in degrees relative to the horizontal) on which the car could remain in equilibrium? If the street were icy and the coefficient of static friction between the car’s tires and the road was μ=0.2, what is the steepest slope on which the car could remain in equilibrium?
Situation 3. A road having a radius of 120m and has angle of 9.31 degrees from the horizontal. The center of gravity of the car is located 0.80m above the roadway and the distance between the two front wheels is 1.20m. If the car has a total weight of 15 KN, a. Compute the normal acceleration and the velocity of the car before overturning. b. If uk= 0.60, what is the velocity of the car without sliding? Please answer this with a complete solution and with a Free Body Diagram PLEASE. Thank you.
A car is traveling at a speed of 100 ft/s which accelerates 12 ft/s2. The perception reaction time for the driver is 2.40 s. If the maximum grade of the road is -3.7%, compute the following: a. Braking distance in meters b. Lag distance in meters
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Determine the speed v at which the race car will have no tendency to slip sideways on the banked track, that is, the speed at which there is no reliance on friction. In addition, determine the minimum and maximum speeds, using the coefficient of static friction 4, = 0.80.
TOPIC: Equation of Motion (NORMAL AND TANGENTIAL) Fn= Man Ft= Mat A road having a radius of 120m and has an angle of 9.31° from the horizontal. The center of gravity of the car is located 0.80m above the roadway and the distance between the two front wheels is 1.20m. If the car has a total weight of 15KN, Compute the normal acceleration and the velocity of the car before overturning. If uk= 0.60, what is the velocity of the car without sliding? PLEASE ANSWER WITH A COMPLETE AND DETAILED SOLUTIONS. THANK YOU
A vehicle moving at a speed at a speed of 90 kph along an incline surface having aslope of 5%. If the coefficient of friction is 0.20, determine the braking distance.
One of the two motor vehicles is moving up the ramp at 90 km / h on a road with a slope of 3%, the other goes down the ramp at a speed of 20 km / h on the opposite lane. What should be the shortest distance for two vehicle drivers to see each other in order to prevent collision by braking? The reaction time is 2.0 seconds and the sliding friction coefficient is 0.25.
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A car is to be driven up a 7° incline road. Determine the automobiles braking distance from 30 m/s if the brakingdistance at 25 m/s speed is 45m when applied on a horizontal plane. Determine the braking distance going down a 5% incline. Assume the braking force is independent of the slope.

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