Acar has a mass of 1500 kg and a kinetic energy of 23,500 j. how fast is the car going?

v = 5.6 m/s

Explanation:

Given,

The mass of the car, m = 1500 kg

The kinetic energy of the car, K.E = 23,500 J

The kinetic energy of the of an object is given by the relation,

                                        K.E = ½ mv²

Substituting the given values in the equation,

                                        23,500 = ½ x 1500 x v²

                                              v² = 23500/ 750

                                                   = 31.33

                                                v  = 5.6 m/s

Hence, the K.E of the car is,   v  = 5.6 m/s

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.