Answer: Option (b) is the correct answer.
Explanation:
Kinetic energy is the energy of an object or particle when it is in motion.
Mathematically, Kinetic energy =
It is given that toy truck has mass = 0.75 kg, and velocity = 4 m/s.
Calculate the kinetic energy as follows.
Kinetic energy =
=
=
=
=
or, Kinetic energy = 6 joules
Thus, we can conclude that kinetic energy of toy truck is 6 J.