Time and Distance Problem

Advertisements

Prev Tutorial Next Tutorial

Time and Distance Problem

Speed: Speed is defined as the distance covered by an object in unit time.

time and distance problem

Formula

speed = distance cover
time taken

Some Important Facts

  • Distance travelled is proportional to the speed of the object if the time is kept constant.
  • Distance travelled is proportional to the time taken if speed of object is kept constant.
  • Speed is inversely proportional to the time taken if the distance covered is kept constant.
  • If the ratio of two speeds for same distance is a:b then the ratio of time taken to cover the distance is b:a

Relative Speed

If two objects are moving in same direction with speeds of x and y then their relative speed is

Formula

(x - y)

If two objects are moving is opposite direction with speeds of x and y then their relative speed is

Formula

(x + y)

Unit Conversion

km/hr to m/sec conversion

x km/hr = x x 5 m/sec.
18

m/sec to km/hr conversion

x m/sec = x x 18 km/hr.
5

Important Shortcut Formulas

If some distance is travelled at x km/hr and the same distance is travelled at y km/hr then the average speed during the whole journey is given by

average speed

average speed = 2xy km/hr
x+y

If a person travels a certain distance at x km/hr and returns at y km/hr, if the time taken to the whole journey is T hours then the one way distance is given by

one way distance

one way distance = t xy km
x+y

If two persons A and B start their journey at the same time from two points P and Q towards each other and after crossing each other they take a and b hours in reaching Q and P respectively, then

Time and Distance Shortcut Methods

Rule 4: If the same distance is covered at two different speeds S1 and S2 and the time taken to cover the distance are T1 and T2, then the distance is given by


Prev Tutorial Next Tutorial

Google Advertisment

Buy This Ad Space @$20 per Month, Ad Size 600X200 Contact on: hitesh.xc@gmail.com or 9999595223

Magenet is best Adsense Alternative here we earn $2 for single link, Here we get links ads. Magenet

For Projects 9999595223

Google Advertisements


Buy Websites 9999595223

Buy College Projects with Documentation Contact on whatsapp 9999595223. Contact on: hitesh.xc@gmail.com or 9999595223 Try this Keyword C++ Programs

Advertisements