Mr. Henderson's imaginary) Porsche accelerates from 20 m/s to 60 m/s in 4 seconds. Its acceleration is

Step-by-step explanation:

Given

Required

Determine the acceleration

This question will be answered using the first equation of motion.

Substitute values for v, u and t

Subtract 20 from both sides

Divide both sides by 4

Hence, the acceleration is 10m/s/s

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.