A man is driving his 4.5 m long automobile at 90 kph when the traffic signal in front of him changes to yellow. He is 55 m. from the intersection when he applies the brakes after 1.5 second reaction time. If the car can decelerates at a rate of 3.2 m/s2, at what velocity will he be moving when he reaches the intersection? If the yellow light is 5 seconds long, where will the man be when the light turns red? Assuming he will continue through at the speed found in part when the light changes to red. How long will the light have red when he clears the intersection having a width of 20m? Answer the problem and show complete solution please
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
A man is driving his 4.5 m long automobile at 90 kph when the traffic signal in front of him changes to yellow. He is 55 m. from the intersection when he applies the brakes after 1.5 second reaction time. If the car can decelerates at a rate of 3.2 m/s2, at what velocity will he be moving when he reaches the intersection? If the yellow light is 5 seconds long, where will the man be when the light turns red? Assuming he will continue through at the speed found in part when the light changes to red. How long will the light have red when he clears the intersection having a width of 20m?
Answer the problem and show complete solution please
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