Question

an aeroplane flies 1288km in 1 hr 55 minutes Find it's speed​

Answer 1

$Speed = 671.98 \frac{km}{h}$

Step-by-step explanation:

GIVEN

Distance = 1288km

Time = 1 hr 55 minutes = 1.9167 hours

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To Find

Speed

___________________________

We know that,

$Speed = \frac{Distance}{Time}$

$Distance= Speed \times Time$

$Time=\frac{Distance}{Speed}$

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$Speed = \frac{Distance}{Time}$

$Speed = \frac{1288}{1.9167}$

$Speed = 671.98$

$Speed = 671.98 \frac{km}{h}$

Answer 2

Question

An areroplane flies 1288 km in 1 hour 55 minutes. Find the speed.

Given

• Time taken - 1 hour 55 minutes
• Distance - 1288 km

Required to Find

It's speed.

$\color{red} \sf \large \huge \: solution$

We have

• Distance is 1288 km

• Time is 1 hour and 55 minutes

we know that,

$\sf \: speed = \dfrac{total \: distance \: travelled}{time \: required}$

So,

$\: \: \: \: \: \: \: \: \: \: \: \: \: = \sf \dfrac{1282}{1.9167}$

$\: \: \: \: \: \: \: \: \: \: \: \: \sf \: = 671.98$

Therefore, the speed is 671.98 km hr.

Do you know ?

• The units of speed and velocity are the same .In the SI system, the unit is m/s while in the CGS system, it is cm /s.
• speed is related to distance while velocity is related to the displacement.
• If the motion is along a straight line, the values of speed and velocity are the same, otherwise they can be different.