Question

What is the mass of a boat going 25 m/s that has a kinetic energy of 145000 J?

Answer 1

Answer:

464 kg = mass of boat

Explanation:

Kinetic energy = 1/2 mv^2

145000 J = 1/2 × m × 25 ×25

145000 × 2 = 625 m

290000 / 625 = mass

464 kg = mass of boat

Ans .

hope it helps

Answer 2

Answer:

464 kg

Explanation:

kinetic energy= 1/2mv^2

145000=1/2 m× 25 × 25

145000 = 1/2 m × 625

145000/ 625 = 1/2 m

232 × 2 = m

m = 464 Ans