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

Author Question: A crane drops a 0.250-kg steel ball onto a steel plate. The ball's speeds just before impact and ... (Read 90 times)

Caiter2013

  • Hero Member
  • *****
  • Posts: 607
on: Jul 28, 2018
A crane drops a 0.250-kg steel ball onto a steel plate. The ball's speeds just before impact and after are 4.00 m/s and 3.70 m/s, respectively. If the ball is in contact with the plate for 0.035 s, what is the magnitude of the average force that the ball exerts on the plate during impact?
 a. 55.0 N
  b. 2.14 N
  c. 28.6 N
  d. 26.4 N
  e. 1.93 N

Question 2

Alex throws a 0.250-kg rubber ball down onto the floor. The ball's speed just before impact is 5.30 m/s, and just after is 3.71 m/s. If the ball is in contact with the floor for 0.028 s, what is the magnitude of the average force applied by the floor on the ball?
 a. 80.4 N
  b. 14.2 N
  c. 47.3 N
  d. 33.1 N
  e. 2.25 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

raenoj

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

a


Caiter2013

  • Hero Member
  • *****
  • Posts: 607
Reply #2 on: Jul 28, 2018
Thanks


raenoj

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

The Impact of Reduction Campaigns on Sids Rates The Impact of Reduction Campaigns on Sids Rates
Crane fly Crane fly
When the PCM commands 50% duty cycle, the oil flow through the phaser drops to zero. When the PCM commands 50% duty cycle, the oil flow through the phaser drops to zero.
DDT impact on human health DDT impact on human health
Three Types of Plate Boundaries Three Types of Plate Boundaries
Effects of alterations in Shh morphogen activity in the floor plate and the limb bud Effects of alterations in Shh morphogen activity in the floor plate and the limb bud
Video: Integumentary Anatomy

For a complete list of videos, visit our video library