Question

In a 100m race,Abhay runs at a speed of 2m/s.If he gives Rohan a start of 5m And still beats him by 10 seconds,find the speed of rohan.

Answer 1

Step-by-step explanation:

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Answer 2

Recall:

$\text{Distance } = \text{Speed } \times \text{Time }$

$\text{Time } = \text{Distance } \div \text{Speed }$

$\text {Speed } = \text {Distance } \div \text {Time }$

Given:

$\text{Distance } = 100 \text{ m}$

Find the time taken by Abhay:

$\text{Speed } = 2 \text{ m/s}$

$\text{Time } = \text{Distance } \div \text{Speed }$

$\text{Time } = 100 \div 2$

$\text{Time } = 50 \text{ seconds}$

Find the distance that Rohan need to run:

$\text {Distance } = 100 - 5$

$\text {Distance } = 95 \text { m}$

Find the time taken by Rohan:

$\text {Time Taken } = 50 + 10$

$\text {Time Taken } = 60 \text { seconds}$

Find Rohan's speed:

$\text {Speed } = \text {Distance } \div \text {Time }$

$\text {Speed } = 95 \div 60$

$\text {Speed } = 1.58 \text { m/s}$

Answer: Rohan ran at a speed of 1.58 m/s