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

Author Question: A 1 500-kg experimental rocket sled at rest on level frictionless rails is loaded with 55.0 kg of ... (Read 661 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
on: Jul 28, 2018
A 1 500-kg experimental rocket sled at rest on level frictionless rails is loaded with 55.0 kg of propellant. It exhausts the propellant in a 20-s burn. The rocket moves at 155 m/s after the burn. What average force is experienced by the rocket during the burn?
 a. 4.26E+2 N
  b. 1.16E+4 N
  c. 1.21E+4 N
  d. 1.94E+2 N
  e. 2.33E+5 N

Question 2

A 1 200-kg experimental rocket sled on level frictionless rails is loaded with 55.0 kg of propellant. It exhausts the propellant in a 20-s burn. If the rocket, initially at rest, moves at 155 m/s after the burn, what impulse is experienced by the rocket sled?
 a. 8.5E+3 kg/m/s
  b. 1.3E+5 kg/m/s
  c. 1.9E+5 kg/m/s
  d. 8.5E+5 kg/m/s
  e. 2.1E+5 kg/m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

c


ENagel

  • Member
  • Posts: 540
Reply 2 on: Jul 28, 2018
Excellent

JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

The central dogma of genetics at the molecular level. The central dogma of genetics at the molecular level.
Drive-on ramps are dangerous to use. The wheels on the ground level must be chocked (blocked) to ... Drive-on ramps are dangerous to use. The wheels on the ground level must be chocked (blocked) to ...
Upper-Level Maps Upper-Level Maps
Sea-Level Rise Sea-Level Rise
Position the forearm for ice massage of the tendons around the elbow. Rest the forearm comfortably ... Position the forearm for ice massage of the tendons around the elbow. Rest the forearm comfortably ...
In the figure, a 10.0-m long bar is attached by a frictionless hinge to a wall and held ... In the figure, a 10.0-m long bar is attached by a frictionless hinge to a wall and held ...
Video: Gastrulation: cross section of the frog

For a complete list of videos, visit our video library