A 3.0-kg cat runs to the left at 10 m/s and a 10-kg dog runs to the right at 4.0 m/s. The total kinetic energy is
A) -35 Joule.
B) 0.
C) -70 Joule.
D) 146 Joule.
E) 230 Joule.

Question

Quizplus · Accepted Answer

The total kinetic energy is calculated by summing the kinetic energies of both the cat and the dog. The kinetic energy (KE) is given by the formula KE = 0.5 * m * v^2. For the cat: KE_cat = 0.5 * 3.0 kg * (10 m/s)^2 = 150 Joules. For the dog: KE_dog = 0.5 * 10 kg * (4.0 m/s)^2 = 80 Joules. The total kinetic energy is 150 Joules + 80 Joules = 230 Joules.

A 30-Kg Cat Runs to the Left at 10 M/s and and a 10-Kg