Answer:
i) 1350 m
ii) 5400 m
Step-by-step explanation:
<u>Formula for Speed</u>
![\boxed{\sf Speed=\dfrac{Distance}{Time}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csf%20Speed%3D%5Cdfrac%7BDistance%7D%7BTime%7D%7D)
Rearrange the formula so that Distance is the subject:
![\implies \sf Distance = Speed \times Time](https://tex.z-dn.net/?f=%5Cimplies%20%5Csf%20Distance%20%3D%20Speed%20%5Ctimes%20Time)
<h3><u>Question (i)</u></h3>
Given:
- Speed = 45 m/s (meters per second)
- Time = 30 seconds
Substitute the given values into the formula for distance:
![\implies \sf Distance = 45 \times 30 = 1350\:m](https://tex.z-dn.net/?f=%5Cimplies%20%5Csf%20Distance%20%3D%2045%20%5Ctimes%2030%20%3D%201350%5C%3Am)
<h3><u>Question (ii)</u></h3>
Given:
- Speed = 45 m/s (meters per second)
- Time = 2 minutes
As the time is given in a different unit of time as the speed, we must first convert the time into seconds:
1 minute = 60 seconds
⇒ 2 minutes = 60 × 2 = 120 seconds
Therefore:
- Speed = 45 m/s (meters per second)
- Time = 120 seconds
Substitute the values into the formula for distance:
![\implies \sf Distance = 45 \times 120 = 5400\:m](https://tex.z-dn.net/?f=%5Cimplies%20%5Csf%20Distance%20%3D%2045%20%5Ctimes%20120%20%3D%205400%5C%3Am)
Yes. Your answer is correct
I think the best option is 24.