Hr to min to sec
1hr = 60min ; 1min = 60 secs;
1 sec = 1/3600hr;
Km, Meter, Mile, Foot, Inch, Cm
1km = 0.621 mi;
1Km = 1000m
1m = 3.28 ft
25m = 82 ft approx
1 foot = 12inch
Singular foot; Plural feet
1m = 1/1000km
1mile = 1.609 kilometres
127cm = 50 in
1inch = 2.54 centimetres
Distance =
Speed x Time =
Speed =
Distance / Time =
Time =
Distance / Speed =
mr/sec =
km/hr =
Km/hr to m/sec =
x 5/18 for
m/sec to Km/sec =
x 18/5 for
When distance is constant
Speed 🔀 1/Time
Speed is inversely proportion to Time, when
When time is constant
Speed 🔀 Distance
Speed directly proportion to Distance, when
Inverse, Directly proportion concept in Time, Speed, Distance, Explain
Speed is inversely proportion to Time, when Distance is constant.
Speed is directly proportion to Distance, when Time is constant.
Average Speed =
Total Distance / Total Time =
Formula when Distance is given with two Speeds, (Speed 1, Speed 2), then you need to find?
Average Speed = 2 x S1 x S2 / S1 + S2
Formula when n different Speed is given with n different Distance, then you need to find
Average Speed = Total Distance ÷ D1÷S1 + D2÷S2 + D3÷S3 …
Total Time =
Total Distance / Average Speed =
Difference between directly proportion to inversely proportional?