It took a certain vehicle 3 hours to travel a distance of 120 km. On its way back, it took him only 2 hours in traveling the same path. What was his average speed? 2. A motorboat can travel 4 km upstream at the same time it can travel 9 km downstream. If the velocity of the current is 8 kph, find the velocity of the boat in still water.
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.
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1. It took a certain vehicle 3 hours to travel a distance of 120 km. On its way
back, it took him only 2 hours in traveling the same path. What was his average
speed?
2. A motorboat can travel 4 km upstream at the same time it can travel 9 km
downstream. If the velocity of the current is 8 kph, find the velocity of the boat in
still water.
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