Question

Given Mass = 1200 kg and velocity = 11.11 m/s. What is the kinetic energy to the nearest hundredths place?

a) 15,420 J
b) 1,516.98 J
c) 8,877.32 J
d) 11,234.32 J

Answer 1

The kinetic energy of an object with mass 1200 kg moving at 11.11 m/s is 74066.56 J when calculated using the formula KE = 0.5 × mass × velocity squared, which is not among the given options.

Step-by-step explanation:

To calculate the kinetic energy (KE) of an object with a given mass and velocity, you can use the formula KE = 0.5 × mass × velocity2. Plugging in the values provided by the student, we have KE = 0.5 × 1200 kg × (11.11 m/s)2. Performing the calculations, KE = 0.5 × 1200 × 123.4321 = 74066.56 J. To represent the kinetic energy to the nearest hundredths place, we round this to 74066.56 J. Therefore, the correct choice is not listed among the options provided.