a 40 kg runner is running at a speed of 3 m/s. how much kinetic energy does the runner have? remember : ek =…
a 40 kg runner is running at a speed of 3 m/s. how much kinetic energy does the runner have? remember : ek = 1/2mv² ek = ? j
Answer
Explanation:
Step1: Identify values
$m = 40$ kg, $v=3$ m/s
Step2: Substitute into formula
$E_{K}=\frac{1}{2}mv^{2}=\frac{1}{2}\times40\times3^{2}$
Step3: Calculate result
$\frac{1}{2}\times40\times9 = 180$ J
Answer:
180