Question

You are going sledding with your little cousins during a well-earned break. You push your 23 kg cousin so that they have a speed of 6 m/s at the top of the hill that is 17 m tall. What is the kinetic energy of your cousin at the top of the hill (after you push)? (in J)

Answer 1

414 J

Step-by-step explanation:

mass, m = 23 kg

velocity, v = 6 m/s

Kinetic energy is given by

K = 0.5 mv²

K = 0.5 x 23 x 6 x 6

K = 414 J

Thus, the kinetic energy is 414 J.

Answer 2

kinetic energy = 414 J

Step-by-step explanation:

given data

mass = 23 kg

speed = 6 m/s

height = 17 m

to find out

kinetic energy

solution

we get kinetic energy that is express as

kinetic energy = 0.5 × m × v² ..........................1

here m is mass and v is speed so

put here value we get kinetic energy

kinetic energy = 0.5 × 23 × 6²

kinetic energy = 414 J