Question

a 64kg skateboarder on a 2.0kg skateboard is on top of a ramp with a vertical height of 5.0 m what is the skateboarders maximum kinetic energy at the bottom of the ramp

Answer 1

The formula for a kinetic energy KE of a falling body is
KE = mgh
where m = mass, g = acceleration due to gravity (9.8 m/s^2, constant), h = height.

The total mass of a skateboader and a skateboard is 64 + 2.0 = 66 kg.

Finally,
KE = 66*9.8*5.0 = 32340 J

Answer 2

The maximum kinetic energy of the skateboarders at the bottom of the ramp is 3234 J.

What is kinetic energy?

Kinetic energy is the energy of a body due to motion.

To calculate the maximum kinetic energy of the skateboarders at the bottom of the ramp, we use the formula below.

Formula:

• K.E = Mgh............ Equation 1

Where:

• M = mass of the skateboarder and the skateboard

• K.E =  maximum kinetic energy of the skateboarders at the bottom of the ramp

• h = Height of the ramp
• g = acceleration due to gravity.

From the question,

Given:

• M = (2+64)M = 66 kgh = 5 mg = 9.8 m/s²

Substitute these values into equation 2

• K.E = 66×5×9.8K.E = 3234 J

Hence, the maximum kinetic energy of the skateboarders at the bottom of the ramp is 3234 J.

Learn more about kinetic energy here: https://brainly.com/question/25959744

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