Which object has the most kinetic energy?
A)a 4-ton truck moving 50 km/hr
B)a 3-ton truck moving 70 km/hr
C)a 2-ton truck moving 90 km/hr
D)a 1-ton truck moving 110 km/hr
E)A,B,C,and D all have the same kinetic energy.

Question

Quizplus · Accepted Answer

The kinetic energy (KE) of an object is given by the formula KE = 1/2 mv^2, where m is the mass of the object and v is its velocity. By applying this formula, we can calculate the kinetic energy for each option. The 2-ton truck moving at 90 km/hr (C) has the most kinetic energy because, despite its lower mass compared to options A and B, its velocity squared (v^2) factor increases its kinetic energy significantly more than the increase in mass does for the other options.

Which Object Has the Most Kinetic Energy