On a dry road, a car with good tires may be able to brake with a constant deceleration of . […]
Physics
An electron has a constant acceleration of . At a certain instant its velocity is 9.6 m/s. What is its […]
An electron has a constant acceleration of
A muon (an elementary particle) enters a region with a speed of and then is slowed at the rate of […]
A muon (an elementary particle) enters a region
An electric vehicle starts from rest and accelerates at a rate of in a straight line until it reaches a […]
An electric vehicle starts from rest and accelerates
Certain mushrooms launch their spores by a catapult mechanism. As water condenses from the air onto a spore that is […]
Certain mushrooms launch their spores

An electron with an initial velocity enters a region of length where it is electrically accelerated as shown in the […]
An electron with an initial velocity

(a) If the position of a particle is given by , where is in meters and is in seconds, when, […]
If the position of a particle is given
At a certain time a particle had a speed of 18 m/s in the positive x direction, and 2.4 s […]
At a certain time a particle had a speed of
An electron moving along the x axis has a position given by , where is in seconds. How far is […]
An electron moving along the x axis has

An abrupt slowdown in concentrated traffic can travel as a pulse, termed a shock wave, along the line of cars, […]
An abrupt slowdown in concentrated traffic

The figure shows a general situation in which a stream of people attempt to escape through an exit door that […]
General situation in which a stream of people attempt
The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured […]