As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a speed of 5 m/s.
Which of the objects has higher kinetic energy?
(1 point)
O The objects have equal kinetic energy.
O The 5 kg object has higher kinetic energy.
O Both objects have zero kinetic energy.
• The 10 kg object has higher kinetic energy.
The kinetic energy (KE) of an object is given by the equation KE = (1/2)mv^2, where m is the mass of the object and v is the velocity of the object.
For the 5 kg object: KE = (1/2)(5 kg)(10 m/s)^2 = 250 J
For the 10 kg object: KE = (1/2)(10 kg)(5 m/s)^2 = 125 J
Therefore, the 5 kg object has higher kinetic energy. So, the correct answer is:
O The 5 kg object has higher kinetic energy.