An ambulance driver is rushing a patient to the hospital. While traveling at 72 km/h, she notices light at the upcoming intersections has turned amber. To reach the intersection before the light turns red, she must travel 50 m in 2 s. a. What minimum acceleration must the ambulance have to reach the intersection before the light turns red? b. What is the speed of the ambulance when it reaches the intersection?
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.
An ambulance driver is rushing a patient to the hospital. While traveling at 72 km/h, she notices light at the upcoming intersections has turned amber. To reach the intersection before the light turns red, she must travel 50 m in 2 s.
a. What minimum acceleration must the ambulance have to reach the intersection before the light turns red?
b. What is the speed of the ambulance when it reaches the intersection?
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