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 68 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
Thanks for the timely response, appreciate it

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

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
When the air–fuel mixture rapidly changes such as during a rapid acceleration, look for a rapid ... When the air–fuel mixture rapidly changes such as during a rapid acceleration, look for a rapid ...
Air flows through the PCV valve during acceleration and when the engine is under a heavy load. Air flows through the PCV valve during acceleration and when the engine is under a heavy load.
A 40.0-kg crate is being raised by means of a rope. Its upward acceleration is 2.00 m/s2. What ... A 40.0-kg crate is being raised by means of a rope. Its upward acceleration is 2.00 m/s2. What ...
The maximum acceleration a pilot can stand without blacking out is about 7.0 g. In an endurance ... The maximum acceleration a pilot can stand without blacking out is about 7.0 g. In an endurance ...
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 ...
Video: Male Reproductive System - The gonadotropin releasing hormone

For a complete list of videos, visit our video library