Question

A cyclist going downhill is accelerating at 1. 2 m/s2. If the final velocity of the cyclist is 16 m/s after 10 seconds, what is the cyclist’s initial velocity? 4 m/s 12 m/s 18 m/s 20 m/s.

Answer 1

Initial velocity = 4 m/s

Step-by-step explanation:

Acceleration, a = 1.2 m/s²

Final velocity, v = 16 m/s

Initial velocity, u = ?

Time, t = 10 seconds

So, we must use the formula:

v = u + at

Insert all the values into the formula.

16 = u + 1.2 × 10

16 = u + 12

Make 'u' the subject of the equation, and solve to find the value of u.

u = 16 - 12

u = 4 m/s