Question

how much kinetic energy does a 50 kg object have if it is moving at a velocity of 2 m/s?
____ j
do not include units in your answer.

Explanation:

Step1: Write the formula for kinetic energy

The formula for kinetic energy is \( KE=\frac{1}{2}mv^{2} \), where \( m \) is the mass and \( v \) is the velocity.

Step2: Substitute the given values

Given \( m = 50\) kg and \( v=2\) m/s. Substitute into the formula: \( KE=\frac{1}{2}\times50\times(2)^{2}\).
First, calculate \( (2)^{2}=4 \). Then, \( \frac{1}{2}\times50 = 25 \).

Step3: Calculate the final value

Multiply \( 25\times4=100 \).

Answer:

100