Question

Find the kinetic energy of a 50 N crate moving at 6 m/s. Group of answer choices 5.1 J 8.3 J 91.8 J 300 J

Answer 1

The kinetic energy of a 50 N crate moving at 6 m/s is calculated by finding the mass using the weight (5.1 kg) and then applying the kinetic energy formula, resulting in 91.8 Joules.

The question asks us to find the kinetic energy of a 50 N crate moving at 6 m/s. In Physics, kinetic energy (KE) is given by the formula KE = (1/2)
`mv^2`, where m is the mass and v is the velocity of the object.

First, we need to find the mass of the crate. Since the crate is on Earth, we can use the formula weight (W) = mass (m) * gravity (g). Here, gravity (g) is approximately 9.8
`m/s^2`. Therefore, m = W/g = 50 N / 9.8
`m/s^2`, which gives us a mass of approximately 5.1 kg.

Now, we can calculate the kinetic energy: KE = (1/2) * 5.1 kg *
`(6 m/s)^2` which equals (1/2) * 5.1 kg * 36
`m^2/s^2` and results in 91.8 J. Therefore, the kinetic energy of the crate is 91.8 Joules.