if you walk 450 m north and then 200 m south, what is your displacement? (a) 250 m (b) 250 m north (c) 650 m…

if you walk 450 m north and then 200 m south, what is your displacement? (a) 250 m (b) 250 m north (c) 650 m (d) 650 m north question 14 (1 point) a roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. whats the acceleration? a) 24 m/s² b) 18 m/s² c) 16 m/s² d) 16 m/s

if you walk 450 m north and then 200 m south, what is your displacement? (a) 250 m (b) 250 m north (c) 650 m (d) 650 m north question 14 (1 point) a roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. whats the acceleration? a) 24 m/s² b) 18 m/s² c) 16 m/s² d) 16 m/s

Answer

Explanation:

Step1: Recall the formula for acceleration

The formula for acceleration (a=\frac{v - u}{t}), where (v) is the final velocity, (u) is the initial velocity, and (t) is the time.

Step2: Substitute the given values

Given (u = 6.0\space m/s), (v=70\space m/s), and (t = 4\space s). Substitute into the formula: (a=\frac{70 - 6}{4})

Step3: Calculate the acceleration

First, calculate the numerator: (70-6 = 64). Then, divide by (4): (a=\frac{64}{4}=16\space m/s^{2})

Answer:

C. (16\space m/s^{2})