Answer:96km in 1 hour requires a speed of 96km/h; 96km in 2 hours requires a speed of 96/2=48km/h.
You can travel at any speed between 48km/h and 96km/h to arrive in between 1 and 2 hours.
There is no sufficient info to solve the problem and answer the question.
Also, this fragment "Two bikers started at the same," is a nonsense, not allowable in Math.
Find the antiderivative of the velocity function.
1 rotation = 2pi radians = 2*3.14 radians = 6.28 radians
1 rotation per 8 seconds is the angular velocity 2pi%2F8 radians per second = 6.28%2F8 = 0.785 radians per second
hope this is helpful