Question

A car travels at a speed of 20m/s. In how much time will it cover
a distance of 1.6 km?​

Answer 1

Explanation:

$speed = \frac{distance}{time}$

$time = \frac{distance}{speed}$

$1.6km = 1600m \\ \frac{1600}{20}$

$= 80sec$

hope it's helpful

Answer 2

Answer :

➥ The time taken by a car = 80 sec

Given :

➤ Speed of a car (s) = 20 m/s

➤ Distance travelled by a car (d) = 1.6 km

To Find :

➤ Time taken by a car (t) = ?

Solution :

To find time taken by a car, first we need to convert the distance travelled by a car km into m, then after we find the time taken by a car.

◈ Distance travelled by a car (d) = 1.6 km

→ 1 km = 1000 m

→ 1.6 km = 1.6 × 1000

→ 1600 m

Now, we have distance travelled by a car and it's speed,

• Distance cover by a car (d) = 1600 m
• Speed of a car (s) = 20 m/s

So let's calculate Time taken by a car by using the formula:

As we know that

$\tt{:\implies Speed = \dfrac{Distance}{Time \: taken}}$

$\tt{:\implies Time \: taken = \dfrac{Distance}{Speed}}$

$\tt{:\implies Time \: taken = \dfrac{160 \cancel{0}}{2 \cancel{0}}}$

$\tt{:\implies Time \: taken = \cancel{\dfrac{160}{2}}}$

$\bf{:\implies \underline{ \: \: \underline{ \red{ \: \: Time \: taken = 80 \: sec \: \: }} \: \: }}$

║Hence, the time taken by a car is 80 sec.║

⠀⠀

Some related formulae :

⪼ s = d ÷ t

⪼ d = s × t

⪼ t = d ÷ s

Where,

• s is the speed.
• d is the distance.
• t is the time.

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