A car traveling 56.0 km/h is 24.0 m from a barrier when the driver slams on the brakes.The car hits […]

# Daily archives: April 22, 2016

A world’s land speed record was set by Colonel John P. Stapp when in March 1954 he rode a rocket-propelled […]

## A rocket-propelled sled that moved along a track

Suppose a rocket ship in deep space moves with constant acceleration equal to , which gives the illusion of normal […]

## Suppose a rocket ship in deep space moves

The brakes on your car can slow you at a rate of . (a) If you are going 137 km/h […]

## The brakes on your car can slow you

A certain elevator cab has a total run of 190 m and a maximum speed of 305 m/min, and it […]

## A certain elevator cab has a total run

On a dry road, a car with good tires may be able to brake with a constant deceleration of . […]

## On a dry road, a car with good tires may

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 […]