Question

type the correct answer in the box. round your answer to the nearest whole number. dina has a mass of 50 kilograms and is waiting at the top of a ski slope thats 5 meters high. the maximum kinetic energy she can reach when she skis to the bottom of the slope is joules. use pe = m × g × h and g = 9.8 m/s². ignore air resistance and friction.

Explanation:

Step1: Identify the principle

According to conservation of mechanical - energy, at the bottom of the slope, all potential energy is converted to kinetic energy.

Step2: Calculate potential energy

Given $m = 50$ kg, $g=9.8$ m/s², $h = 5$ m. Use the formula $PE=m\times g\times h$.
$PE=50\times9.8\times5$
$PE = 2450$ J
Since $KE_{max}=PE$ (ignoring air - resistance and friction), the maximum kinetic energy is also 2450 J.

Answer:

2450