Question

Falling rock on another planet was detected as moving at the following speeds, corresponding to the time suggested in the table, which equation Can be used to find the speed of the rock at T seconds?

Answer 1

B. s = 24t

Explanation:

Since s varies directly with t, therefore, equation that will represent the relationship would take the form of s = my

m = rate of change

✔️Find the rate of change:

Rate of change using two given pairs, (0.5, 12) and (2.5, 60),

Rate of change (m) = ∆s/∆t = (60 - 12)/(2.5 - 0.5) = 48/2 = 24

✔️Substitute m = 24 into s = mt

s = 24t