Objects can possess kinetic energy, which is the energy of motion. In our everyday position, energy can be transferred and transformed in various forms of work. Work is the energy consumed when an object is moved against a force. Mathematically, we would write this as:
Work = Force x Distance
For example, how much work is done when a force of 64 N is applied over a distance of 28 m? Your answer should be in units of Joules (J).
Force = 64 N
Distance = 28 m
Work = Force x Distance
Work = 64 N x 28 m
Work = 1792 J
Now, let's consider the energy transferred to an object when work is done. The potential energy of an object increases as its height above the ground increases. This is due to the gravitational acceleration, which has a symbol value of 9.81 m/s^2.
Next, let's calculate the kinetic energy of an object. Kinetic energy is given by the equation:
Kinetic energy = (1/2) x mass x velocity^2
If a tomato is dropped, what is the velocity it reaches when it hits the ground? Assume that 91% of the work done is transferred to the tomato. The time it takes for the tomato to hit the ground can be ignored.
Express your answer with the appropriate units.