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A motorist traveling on a highway at a speed of 60 mi/h exits onto an ice-covered exit ramp. Wishing to stop, he applies his brakes until his automobile comes to rest. Knowing that the magnitude of the total acceleration of the automobile cannot exceed 10 ft/s^2, determine the minimum time require for the automobile to come to rest and the distsnce it travels on the exite ramp during that time if the exit ramp (a) is straight (b) has a constant radius of curvature of 800 ft.
Solve each part assuming that the driver applies his brakes so that dv/dt , during each time interval, (1)remains constant ,(2) varies linearly ?
The bonds pays interest semiannually on June 30 and December 31. The bonds are issued to yield 5%. Illustrate what are the proceeds from the bond issue?
A cowboy at a ranch fills a water trough that is 1.1 m long, 68 cm wide, and 44 cm deep. He uses a hose having a diameter of 2.3 cm, and the water emerges from the hose at 2.5 m/s. How long does it take the cowboy to fill the trough?
The drawing shows one horizontal wire with the current going up and one vertical wire with the current going to the right. Point A is dH to the right and dV above the intersection. Point B is dH to the left and dV below the intersection.
Two point charges 2.0cm apart have an electric potential energy -310uJ. The total charge is 15nC. What is the lesser charge
After falling from rest from a height of 29 m, a 0.49-kg ball rebounds upward, reaching a height of 19 m. find average force was exerted on the ball
The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is θ = 0.320 rad. From these data, evaluate the speed of the bullet.
superkid finally fed up with superbullys obnoxious behaviour hurls a 1.95-kg stone at him at 0.547 of the speed of
A 1.24 kilogram block is held against a spring of force constant 0.8 x 10^4 N/m, compressing it a distance of 0.16 meter. Evaluate how fast is the block moving after it is released
You are the design engineer in charge of the crash worthiness of new automobile models. Find the average force exerted on the car by the barrier
A clock is located in a satellite that orbits the earth with a period of 82 minute at the radius 6.24942 x 106 meter. Find by what time interval will this clock differ from an identical clock on the earth after 2 year
A can of sardines is made to move along an x axis from x = 0.46 m to x = 1.20 m by a force with a magnitude given by F = exp(-5x), How much work is done on the can by the force
question 50g of gasoline are mixed with 40g of water. what is the average density kgm3 of the mixture? 55g of gasoline
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