Answer:
90,000 J
Explanation:
Kinetic energy can be found using the following formula.
[tex]KE=\frac{1}{2}mv^2[/tex]
where m is the mass in kilograms and v is the velocity in m/s.
We know the object has a mass of 50 kilograms. We also know it is a traveling at a rate of 60 m/s. Velocity is the speed of something, so the velocity of the object is 60 m/s.
m=50
v=60
Substitute these values into the formula.
[tex]KE=\frac{1}{2}*50*60^2[/tex]
First, evaluate the exponent: 60^2. 60^2 is the same as multiplying 60, 2 times.
60^2=60*60=3,600
[tex]KE=\frac{1}{2}*50*3,600[/tex]
Multiply 50 and 3,600
[tex]KE=\frac{1}{2}*180,000[/tex]
Multiply 1/2 and 3,600, or divide 3,600 by 2.
[tex]KE=90,000[/tex]
Add appropriate units. Kinetic energy uses Joules, or J.
[tex]KE=90,000 Joules[/tex]
The kinetic energy of the object is 90,000 Joules
