Dynamic
Tests reveal that a normal driver takes about 0.75 s before he or she can react to a situation to
avoid a collision. It takes about 3 s for a driver having 0.1% alcohol in his or her system to do
the same. If such drivers are traveling on straight road at 50 km/h and their cars can decelerate
at 0.6 m/s2
, determine the shortest stopping distance d for each of these drivers from the
moment they see the pedestrians. Moral: If you must drink, please don’t drive!
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Tests reveal that a normal driver takes about 0.75 s before he or she can react...
Tests reveal that a normal driver takes about 0.75 s before he or she can react to a situation to avoid a collision. It takes about 3 s for a driver having 0.1% alcohol in his system to do the same.(Figure 1). Figure < 1 of 1 > - 44 ft/s - Pai Review Part A If such drivers are traveling on a straight road at 30 mph (44 ft/s) and their cars can decelerate at 20 ft/s, determine the...
12-10. Car A starts from rest at t-0 and travels along a straight road with a...
12-10. Car A starts from rest at t-0 and travels along a straight road with a constant acceleration of 3 m/s until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when-0, car B located 2000 m down the road is traveling towards A at a constant speed of 20 m/s. Determine the distance travelled by car A when they pass each other. 20 m/s 2000 m 12-11. A particle travels along a straight line with...
Please help 12-17. Car B is traveling a distance d ahead of car A. Both cars...
Please help
12-17. Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes causing his car to decelerate at 12 ft/s. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes he decelerates at 15.ft/s2. Determine the minimum distance d be tween the cars so as to avoid a...
Please help 12-17. Car B is traveling a distance d ahead of car A. Both cars...
Please help
12-17. Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes, causing his car to decelerate at 12 ft/s. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, I dece lerates at 15 ft/s. Determine the minimum distance d be tween the cars so as to...
U of Wyoming Dynamics, ES 2120-01, Fall 2018 Problem 12.17 Car B is traveling a distance...
U of Wyoming Dynamics, ES 2120-01, Fall 2018 Problem 12.17 Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B Determine the minimum distance d between the cars so as to avoid a collision. at 8 ft/s2 It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, he decelerates at 16 ft/s2 Figure...
A 1,200-kg car is traveling on an icy horizontal road at 30 m/s. The maximum rate...
A 1,200-kg car is traveling on an icy horizontal road at 30 m/s. The maximum rate at which the car can decelerate without sliding on the ice is 1.2 m/s2; reaching this value will immediately result in sliding uncontrollably with a reduced sliding friction of 700 N. If the driver panics and slams hard on the brakes, then how far will the car slide before stopping? Answer in km.
The driver of one car has a mass of 1200 kg and is traveling at 10...
The driver of one car has a mass of 1200 kg and is traveling at 10 m/s westward when he collides with another car with a mass of 2000 kg that is traveling 15 m/s northward. The two cars stick together after colliding. Please show all work. a) What is the total momentum before the collision and after the collision? b) What are the speed and direction of the cars after the collision? c) If coefficient of kinetic friction between...
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 60...
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 60 km/s. To the crew's great surprise, a Klingon ship is 110 km directly ahead, traveling in the same direction at a mere 20 km/s. Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 2.8 s. The Enterprise's computers react instantly to brake the ship. What magnitude acceleration does the Enterprise need to just barely avoid a collision with...
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 53...
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 53 km/s . To the crew's great surprise, a Klingon ship is 100 km directly ahead, traveling in the same direction at a mere 26 km/s . Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 3.7 s. The Enterprise's computers react instantly to brake the ship. What magnitude acceleration does the Enterprise need to just barely avoid a...
Review The Starship Enterprise returns from warp drive to ordinary space with a forward speed of...
Review The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 55 km/s To the crew's great surprise, a Klingon ship is 120 km directly ahead, traveling in the same direction at a mere 27 km/s. Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 4.3 S. The Enterprises computers react instantly to brake the ship What magnitude acceleration does the Enterprise need to just barely avoid a collision...
Tests reveal that a normal driver takes about 0.75 s before he or she can react to a situation to avoid a collision. It takes about 3 s for a driver having 0.1% alcohol in his system to do the same.(Figure 1). Figure < 1 of 1 > - 44 ft/s - Pai Review Part A If such drivers are traveling on a straight road at 30 mph (44 ft/s) and their cars can decelerate at 20 ft/s, determine the...
12-10. Car A starts from rest at t-0 and travels along a straight road with a constant acceleration of 3 m/s until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when-0, car B located 2000 m down the road is traveling towards A at a constant speed of 20 m/s. Determine the distance travelled by car A when they pass each other. 20 m/s 2000 m 12-11. A particle travels along a straight line with...
Please help
12-17. Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes causing his car to decelerate at 12 ft/s. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes he decelerates at 15.ft/s2. Determine the minimum distance d be tween the cars so as to avoid a...
Please help
12-17. Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes, causing his car to decelerate at 12 ft/s. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, I dece lerates at 15 ft/s. Determine the minimum distance d be tween the cars so as to...
U of Wyoming Dynamics, ES 2120-01, Fall 2018 Problem 12.17 Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B Determine the minimum distance d between the cars so as to avoid a collision. at 8 ft/s2 It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, he decelerates at 16 ft/s2 Figure...
The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 60 km/s. To the crew's great surprise, a Klingon ship is 110 km directly ahead, traveling in the same direction at a mere 20 km/s. Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 2.8 s. The Enterprise's computers react instantly to brake the ship. What magnitude acceleration does the Enterprise need to just barely avoid a collision with...
Review The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 55 km/s To the crew's great surprise, a Klingon ship is 120 km directly ahead, traveling in the same direction at a mere 27 km/s. Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 4.3 S. The Enterprises computers react instantly to brake the ship What magnitude acceleration does the Enterprise need to just barely avoid a collision...
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