A car starts from rest and moves with a constant acceleration along a straight horizontal road for a given time. Write a PHP script that prompts the user to enter the acceleration and the time the car traveled, and then calculates and displays the distance traveled. The required formula is

where

  • S is the distance the car traveled, in meters (m)
  • uo is the initial velocity (speed) of the car, in meters per second (m/sec)
  • t is the time the car traveled, in seconds (sec)
  • a is the acceleration, in meters per second2 (m/sec2)
Solution

Since the car starts from rest, the initial velocity (speed) u0 is zero. Thus, the formula becomes

and the program is

PHP

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Python

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