Question

a bus takes 2hrs to cover a distance of 80 km calculate its speed in km / hrs and minute /second

Answer 1

speed = distance/ time.
Given:-time=2hrs= 120mins
distance=80km= 80000mts.
speed= 80000/120
= 666.6m/sec.

In km/hr.
speed =80/2
= 40 km/hr.

Answer 2

The speed is 40 km/hr or 11.11 m/s.

• Physical fundamental units are used to quantify a wide range of quantifiable quantities. One such measurable metric is speed, which calculates the ratio between the distance an object travels and the time needed to cover that distance.
• The distance travelled in relation to the time it took to travel that distance is how speed is defined.
• Since speed simply has a direction and no magnitude, it is a scalar quantity. When an object travels the same distance in the same amount of time, it is said to be moving at a uniform speed. When an object travels the same distance in the same amount of time, it is said to be moving at a uniform speed.

Here, according to the given information, we are given that,

Distance = 80 km = 80000 m.

Time = 2 hours = 7200 seconds.

Then, we know that,

Speed = $\frac{Distance}{Time} =\frac{80}{2} =40 km/hr.$

Now, in metre per seconds it will be, $\frac{80000}{7200} =11.11$ m/s.

Hence, the speed is 40 km/hr or 11.11 m/s.

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