he minimum distance required to stop a car moving at 35.0 mi/h is 40.0 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming the same rate of acceleration?
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.
- The minimum distance required to stop a car moving at 35.0 mi/h is 40.0 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming the same rate of acceleration?
- A truck covers 40.0 m in 8.50s while smoothly slowing down to a final speed of 2.80 m/s. (a) find its original speed. (b) find its acceleration.
- A man runs at a speed at 4 m/s to overtake a standing bus. When he is 6m behind the door at t=0, the bus moves forward and continues with constant acceleration of 1.2 m/s². A.How long does it take for the man to gain the door? B. If in the beginning he is 10 m behind the door, will he running at the same speed ever catch up bus?
These are the possible formula:
Vf=Vi+at
Vavg=Vi+Vf/2
Xf=Xi+Vit+1/2at²
Vf²=Vi²+2a(xf-xi)
Xf=Xi+Vt
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