Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and, as of 20 April 2021 (Eastern Time), the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Anonymous
Anonymous asked in Science & MathematicsPhysics · 2 weeks ago

Bob, who has a mass of 84 kg , can throw a 800 g rock with a speed of 24 m/s ...?

Bob, who has a mass of 84 kg , can throw a 800 g rock with a speed of 24 m/s . The distance through which his hand moves as he accelerates the rock forward from rest until he releases it is 1.1 m .

A) What constant force must Bob exert on the rock to throw it with this speed?

Express your answer using two significant figures.

B) If Bob is standing on frictionless ice, what is his recoil speed after releasing the rock?

Express your answer using two significant figures.

1 Answer

Relevance
  • 2 weeks ago

    I am tired of "Anonymous".  It is easy to answer your question but unless you admit to who you are why should I?

Still have questions? Get answers by asking now.