if the mass of a kettlebell is 2 kg and julie swings it with a velocity of 5 m/s. what is the kinetic energy of the kettlebell? (KE= 1/2 mv^2)
Using the formula for kinetic energy:
KE = 1/2 * m * v^2
where m is the mass of the kettlebell and v is its velocity.
Substituting the given values:
KE = 1/2 * 2 kg * (5 m/s)^2
Simplifying:
KE = 1/2 * 2 kg * 25 m^2/s^2
KE = 25 J
Therefore, the kinetic energy of the kettlebell is 25 joules.
To calculate the kinetic energy (KE) of the kettlebell, you can use the formula: KE = 1/2 * mass * velocity^2.
Given:
Mass (m) = 2 kg
Velocity (v) = 5 m/s
Substituting the given values into the formula, we have:
KE = 1/2 * 2 kg * (5 m/s)^2
Simplifying the equation:
KE = 1/2 * 2 kg * 25 m^2/s^2
KE = 50 kg m^2/s^2
The kinetic energy of the kettlebell is 50 Joules (J).
To find the kinetic energy (KE) of the kettlebell, we can use the formula KE = (1/2) * m * v^2, where m represents the mass of the kettlebell and v represents its velocity.
In this case, the mass of the kettlebell is given as 2 kg, and Julie swings it with a velocity of 5 m/s.
Let's substitute these values into the formula to find the kinetic energy of the kettlebell:
KE = (1/2) * m * v^2
= (1/2) * 2 kg * (5 m/s)^2
First, let's calculate the square of the velocity:
v^2 = (5 m/s)^2
= 25 m^2/s^2
Now, substitute the value of v^2 into the formula:
KE = (1/2) * 2 kg * 25 m^2/s^2
= 1 kg * 25 m^2/s^2
= 25 kg·m^2/s^2
The kinetic energy of the kettlebell is 25 kg·m^2/s^2, which is a unit of energy called joules (J).