You're a police officer examining the scene of a car crash that killed someone driving a Tesla. There was a collision involving them and a pickup truck. The truck driver, who survived, said he was traveling North into the intersection and the Tesla was traveling East into the intersection. The truck driver claims that he was not exceeding the speed limit when the accident occurred. You note the posted speed limit was 80 km/h. Like airplanes, Teslas have a black box that records various statistics in the event a collision occurs. After analyzing the data from the black box, you discover that Tesla was driving at a velocity of 67.5 km/h [E] when the collision occurred. You google the mass of both of the vehicles and find the Tesla should be about 2300 kg and the truck should be about 2920 kg. During the collision, the two vehicles crumpled and became entangled, the skid marks revealing that the two vehicles traveled E 69° N after impact. How fast, in km/h, was the truck actually driving at the moment of impact? Be clear and show all your work. (HANDWRITTEN ANSWER)
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.
You're a police officer examining the scene of a car crash that killed someone driving a Tesla. There was a collision involving them and a pickup truck. The truck driver, who survived, said he was traveling North into the intersection and the Tesla was traveling East into the intersection. The truck driver claims that he was not exceeding the speed limit when the accident occurred. You note the posted speed limit was 80 km/h. Like airplanes, Teslas have a black box that records various statistics in the event a collision occurs. After analyzing the data from the black box, you discover that Tesla was driving at a velocity of 67.5 km/h [E] when the collision occurred. You google the mass of both of the vehicles and find the Tesla should be about 2300 kg and the truck should be about 2920 kg. During the collision, the two vehicles crumpled and became entangled, the skid marks revealing that the two vehicles traveled E 69° N after impact. How fast, in km/h, was the truck actually driving at the moment of impact? Be clear and show all your work. (HANDWRITTEN ANSWER)
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