This topic contains a solution. Click here to go to the answer

Author Question: When Jim and Rob ride bicycles, Jim can only accelerate at three quarters the acceleration of Rob. ... (Read 66 times)

tsand2

  • Hero Member
  • *****
  • Posts: 520
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
Answer to Question 1

C

Answer to Question 2

D




tsand2

  • Member
  • Posts: 520
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review


abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

For a complete list of videos, visit our video library