Question

a car takes 3.5 hours to cover 210 km. how much time will it take to cover 918 km

Answer 1

Answer:

11.8hr

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Step-by-step explanation:

S=210/3.5=60km/hr

T=D/S=918/60=15.3hr

so it takes 11.8 hr to cover 918 km...

Answer 2

Answer:

15.3 hr

Step-by-step explanation:

Given:

Time = 3.5 hr

Distance = 210 km

To find:

Time taken to cover 918 km

Solution:

The difference between velocity and speed is the amount of displacement travelled in a given amount of time.

Galileo defined speed as the amount of distance travelled in a given amount of time. For instance, a man travelling by car will travel farther than a man travelling by bicycle in the same amount of time. This is due to the fact that an automobile can move faster than a bicycle. Speed is a scalar quantity since it is the component of velocity's magnitude in kinematics.

Distance/time=speed

We know that  $speed=\frac{distance}{time}$

$Speed=\frac{210}{3.5}\\ =60km/hr$

To find the time taken to cover 918 km,

$time=\frac{918}{60} \\time=15.3hr$

Hence the time taken to cover 918 km is 15.3 hr.

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