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

Author Question: When Jim and Rob ride bicycles, Jim can only accelerate at three quarters the acceleration of Rob. ... (Read 62 times)

tsand2

  • Hero Member
  • *****
  • Posts: 520
on: Jul 28, 2018
When Jim and Rob ride bicycles, Jim can only accelerate at three quarters the acceleration of Rob. Both start from rest at the bottom of a long straight road with constant upward slope. If Rob takes 5.0 minutes to reach the top, how much earlier should Jim start to reach the top at the same time as Rob?
 a. 25 s
  b. 40 s
  c. 46 s
  d. 55 s
  e. 75 s

Question 2

A rocket, initially at rest, is fired vertically with an upward acceleration of 10 m/s2 . At an altitude of 0.50 km, the engine of the rocket cuts off. What is the maximum altitude it achieves?
 a. 1.9 km
  b. 1.3 km
  c. 1.6 km
  d. 1.0 km
  e. 2.1 km


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mirabriestensky

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


tsand2

  • Member
  • Posts: 520
Reply 2 on: Jul 28, 2018
Gracias!

Viet Thy

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Drawing of French explorer Paul du Chaillu at close quarters with a gorilla Drawing of French explorer Paul du Chaillu at close quarters with a gorilla
Acceleration–deceleration injuries Acceleration–deceleration injuries
Tangential and Radial Acceleration Tangential and Radial Acceleration
JFK and Jacqueline Kennedy ride in a motorcade with Texas Governor John Connolly and his wife in ... JFK and Jacqueline Kennedy ride in a motorcade with Texas Governor John Connolly and his wife in ...
An electron is accelerated from rest through a potential difference. After acceleration the ... An electron is accelerated from rest through a potential difference. After acceleration the ...
You ride a motor scooter 8 km in 10 minutes. Your speed is You ride a motor scooter 8 km in 10 minutes. Your speed is
Video: Stroke volume - preload, sarcomere length and Frank -Starling law

For a complete list of videos, visit our video library