Find expert answers and community insights on IDNLearn.com. Get prompt and accurate answers to your questions from our experts who are always ready to help.

A 3.2 kg ball that is moving straight upward has 17 J of kinetic energy and its total mechanical energy is 25 J.

Sagot :

Answer:

Height = 0.25 metres

Speed = 3.26 m/s

Explanation:

Kinetic energy = 17 joules

Mechanical energy = 25

Potential energy = 25-27 = 8

Potential energy PE = m*g*h

8 = 3.2x9.81xh

8 = 31.392h

We divide through by the value of h to get height

8/31.392 = h

h = 0.25 metres

We solve for speed = velocity

Kinetic Energy = 1/2mv²

17 = 0.5x3.2xV²

17 = 1.6v²

V² = 17/1.6

V² = 10.625

V = √10.625

Velocity = 3.26m/s

We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Discover the answers you need at IDNLearn.com. Thanks for visiting, and come back soon for more valuable insights.