Question

Manu runs at a speed of 2m/s in a 5 km race how much time will she take to complete the race

Answer 1

Answer:

time = 41.67 minutes

Step-by-step explanation:

• 1 km = 1000 m
• 5 km = 5 × 1000 = 5000 m

$speed = \frac{distance}{time} \\ time = \frac{distance}{speed} \\ time = \frac{5000}{2} \\ time = 2500 \: seconds$

• 1 hour = 60 minutes
• 1 minute = 60 seconds

$time = \frac{2500}{60} \\ time = 41.67 \: minutes$

Answer 2

Given,

Time taken, t = 50s

Distance covered, d = 1.5km

To Find,

speed of vulture, s

Solution,

According to the question;

we have to calculate the speed of vulture.

As we know the relationship between speed, distance and time.

conversion of Distance into metres

1.5 km = 1.5 × 1000m

1.5 km = 1500m

$→speed = distance / time$

substitute the value we get

--» speed = 1500/50

--» speed = 150/5

--» speed = 30m/s

——» The speed of the vulture is 30m/s