This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: John is carrying a shovelful of snow. The center of mass of the 3.00 kg of snow he is holding is ... (Read 83 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
on: Aug 6, 2020
John is carrying a shovelful of snow. The center of mass of the 3.00 kg of snow he is holding is 15.0 cm from the end of the shovel. He is pushing down on the opposite end of the shovel with one hand and holding it up 30.0 cm from that end with his other hand. Ignore the mass of the shovel. Sarah says that his hand pushing down on the shovel must be exerting a greater force than the hand pushing up. James says it is just the reverse. Which one, if either, is correct?

◦
Sarah, because the hand pushing down must exert a greater force to match the torque exerted by the snow.

◦
James, because, depending on the location of the axis of rotation, the hand pushing down can counteract the torque exerted by the snow.

◦
James, because the hand pushing up must exert a force that equals the sum of the force of the hand pushing down and the weight of the snow.

◦
James, because both (b) and (c) above are correct.

◦
Neither, because the hands exert forces of equal magnitudes.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by anjilletteb on Aug 6, 2020

lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 30% of students answer this correctly


anjilletteb

  • Member
  • Posts: 569
Reply 2 on: Aug 6, 2020
Gracias!

AmberC1996

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Eastern skunk cabbage, an endothermic plant, can melt its way up through spring snow cover Eastern skunk cabbage, an endothermic plant, can melt its way up through spring snow cover
Snow leopard in the San Diego Zoo Snow leopard in the San Diego Zoo
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Land mass looks like a synapse Land mass looks like a synapse
Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ... Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ...
Video: Brief Summary on Photosynthesis - Animation

For a complete list of videos, visit our video library