Question

two people are skating on a frozen lake. the kinetic energy of each ice skater depends on the ice skater’s mass and speed. ice skater | mass (kg) | speed (m/s) | kinetic energy (j) florence | 50 | 4 | 400 zack | 50 | 2 | 100 compare the two ice skaters. florence’s mass is dropdown zack’s mass. florence’s speed is dropdown zack’s speed. florence’s kinetic energy is dropdown zack’s kinetic energy.

Explanation:

Step1: Compare Mass

Florence's mass is 50 kg, Zack's mass is 50 kg. So Florence's mass is equal to Zack's mass.

Step2: Compare Speed

Florence's speed is 4 m/s, Zack's speed is 2 m/s. So Florence's speed is greater than Zack's speed.

Step3: Compare Kinetic Energy

Florence's kinetic energy is 400 J, Zack's kinetic energy is 100 J. So Florence's kinetic energy is greater than Zack's kinetic energy.

Answer:

Florence's mass is equal to Zack's mass.
Florence's speed is greater than Zack's speed.
Florence's kinetic energy is greater than Zack's kinetic energy.