DATA The table gives automobile performance data for a few types of cars: Make and Model (Year) Mass (kg) Time (s) to go from 0 to 60 mph Alpha Romeo 4C (2013) 895 4.4 Honda Civic 2.0i (2011) 1320 6.4 Ferrari F430 (2004) 1435 3.9 Ford Focus RS500 (2010) 1468 5.4 Volvo S60 (2013) 1650 7.2 *Source: www.autosnoui.com (a) During an acceleration of 0 to 60 mph. which car has the largest average net force acting on it? The smallest? (b) During this acceleration, for which car would the average net force on a 72.0-kg passenger be the largest? The smallest? (c) When the Ferrari F430 accelerates from 0 to 100 mph in 8.6 s. what is the average net force acting on it? How does this net force compare with the average net force during the acceleration from 0 to 60 mph? Explain why these average net forces might differ. (d) Discuss why a car has a top speed. What is the net force on the Ferrari F430 when it is traveling at its top speed, 196 mph?
DATA The table gives automobile performance data for a few types of cars: Make and Model (Year) Mass (kg) Time (s) to go from 0 to 60 mph Alpha Romeo 4C (2013) 895 4.4 Honda Civic 2.0i (2011) 1320 6.4 Ferrari F430 (2004) 1435 3.9 Ford Focus RS500 (2010) 1468 5.4 Volvo S60 (2013) 1650 7.2 *Source: www.autosnoui.com (a) During an acceleration of 0 to 60 mph. which car has the largest average net force acting on it? The smallest? (b) During this acceleration, for which car would the average net force on a 72.0-kg passenger be the largest? The smallest? (c) When the Ferrari F430 accelerates from 0 to 100 mph in 8.6 s. what is the average net force acting on it? How does this net force compare with the average net force during the acceleration from 0 to 60 mph? Explain why these average net forces might differ. (d) Discuss why a car has a top speed. What is the net force on the Ferrari F430 when it is traveling at its top speed, 196 mph?
DATA The table gives automobile performance data for a few types of cars:
Make and Model (Year)
Mass (kg)
Time (s) to go from 0 to 60 mph
Alpha Romeo 4C (2013)
895
4.4
Honda Civic 2.0i (2011)
1320
6.4
Ferrari F430 (2004)
1435
3.9
Ford Focus RS500 (2010)
1468
5.4
Volvo S60 (2013)
1650
7.2
*Source: www.autosnoui.com
(a) During an acceleration of 0 to 60 mph. which car has the largest average net force acting on it? The smallest? (b) During this acceleration, for which car would the average net force on a 72.0-kg passenger be the largest? The smallest? (c) When the Ferrari F430 accelerates from 0 to 100 mph in 8.6 s. what is the average net force acting on it? How does this net force compare with the average net force during the acceleration from 0 to 60 mph? Explain why these average net forces might differ. (d) Discuss why a car has a top speed. What is the net force on the Ferrari F430 when it is traveling at its top speed, 196 mph?
V1
Refer to Figure
the brakes are released. The coefficient of kinetic friction between the tires and the road is 0.7.
A truck is traveling at 31 m/s when the brakes are fully applied causing the wheels to skid for 3 seconds and then
What is the final speed of the truck in units of m/s ?
O 10.40
O 7.40
O 13.40
O 4.40
A steel cable lying flat on the floor drags a 20 kg block across a horizontal, frictionless
floor. A 110 N force applied to the cable causes the block to reach a speed of 3.9 m/s in a
distance of 2.0 m.
What is the mass of the cable?
Express your answer with the appropriate units.
m=
Submit
μA
Value
Units
?
Units input for part A
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A winter tire test was conducted on the Olympic-sized hockey rink in Steamboat Springs Colorado. The best tire was measured to stop a vehicle from 12 mph to 0 in 30.8 feet. Use the same assumptions as Problem 1 to determine the following.
a. acceleration measured in ft/s2b. elapsed time measured in seconds
c. static coefficient of friction
2. On February 21, 2021 United Airlines Flight 328 suffered a catastrophic engine failure at an altitude of 13,500 feet above ground shortly after departure from Denver International Airport. Parts from the engine fell to the ground in Broomfield, Colorado. If the parts initially accelerated towards Earth based on the equation given below, determine elapsed time from separation to impact. Assume initial vertical velocity is zero.
a = -32-0.2v (a is ft/s2 and v is ft/s)
Analysis of this problem up to terminal velocity is relatively difficult. Analysis after terminal velocity is relatively easy. If you are lost on the first part, use terminal…
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