2024 TJC H1 Q1

2024 TJC H1 Q1

4 marks

A ball is rolling in a straight line such that its distance away from the starting point, \(s\) cm, can be modelled using the equation

\[s = at + \frac{b}{\sqrt{t + 4}} + c,\]

where \(t\) is the time taken in seconds, and \(a\), \(b\) and \(c\) are real constants.

The ball is at the starting point when \(t = 0\), and moved \(10\) cm in the first \(5\) seconds. It moved another \(9\) cm in the next \(16\) seconds. Find the ball’s distance away from the starting point when \(t = 50\).[4]

Create a free account to practise similar questions.

Answer:25.1 cm

Need help? Join our JC Math tuition classes.

Learn more