Question

1. which of these has the most kinetic energy? a. a 25 kg fish tank sitting on a table b. a 50 g fish swimming in a fish tank c. a 7,500 kg car parked on a steep hill d. a 50 kg boulder suspended from a cliff

Explanation:

Kinetic energy (KE) depends on mass and velocity, given by \( KE = \frac{1}{2}mv^2 \). Objects at rest (like A, C, D) have \( v = 0 \), so \( KE = 0 \). The fish (B) is moving, so it has non - zero KE.

Answer:

B. a 50 g fish swimming in a fish tank