A 100-n boulder is sitting on a shelf 0.5 meters above the floor.
How much kinetic energy was used to move the boulder from the lower shelf to the upper shelf at 2.0 meters per second?
and your thinking is...?
Homework question
To calculate the kinetic energy used to move the boulder, we need to utilize the formula for kinetic energy:
Kinetic Energy (KE) = (1/2) * mass * velocity^2
In this case, the mass of the boulder is given as 100 N, and the velocity at which it is moved is given as 2.0 m/s.
Let's plug in the values and calculate the kinetic energy:
KE = (1/2) * 100 N * (2.0 m/s)^2
= 0.5 * 100 N * 4.0 m^2/s^2
= 200 N * m^2/s^2
= 200 joules (J)
Therefore, the kinetic energy used to move the boulder from the lower shelf to the upper shelf at a velocity of 2.0 m/s is 200 joules.