Question

question #22
reference q.47449
a man traveling at 100 km/h constantly accelerates at 1 km/h every sec. how fast is he going after 10 s?

Explanation:

Step1: Calculate the increase in speed

The acceleration is \(1\) km/h per second. After \(10\) seconds, the increase in speed is \(1\times10 = 10\) km/h.

Step2: Find the final speed

The initial speed \(u = 100\) km/h. Using the formula \(v=u + at\) (where \(a = 1\) km/h/s and \(t = 10\) s), the final speed \(v=100+10\).

Answer:

\(110\) km/h