Question

a 0.05 kg golf ball travels at a speed of 40 m/s. how much kinetic energy does the golf ball have? remember : $e_k = \frac{1}{2}mv^2$ $e_k = ? j$

Explanation:

Step1: Identify given values

Mass \( m = 0.05 \, \text{kg} \), velocity \( v = 40 \, \text{m/s} \), formula \( E_K=\frac{1}{2}mv^2 \).

Step2: Substitute values into formula

\( E_K=\frac{1}{2}\times0.05\times(40)^2 \)

Step3: Calculate \( (40)^2 \)

\( 40^2 = 1600 \)

Step4: Multiply step by step

\( \frac{1}{2}\times0.05 = 0.025 \), then \( 0.025\times1600 = 40 \)

Answer:

40