can you help with steps 7.25. What force does block A exert on block B inFig. 7.13?Ans. 15.0 N6 kg2 kg45 NFigure 7.13

Answered: Image /qna-images/answer/f07aef82-a746-47fe-9d89-cac2124de4fd.jpg

Answered: 7.25. What force does block A exert on…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: Newton's Laws Of Motion

Section: Chapter Questions

Problem 7CQ: (a) What force causes an automobile to move? (b) A propeller-driven airplane? (c) A rowboat?

See similar textbooks

Similar questions

When starting a foot race, a 70.0-kg sprinter exerts an average force of 650 N backward on the ground for 0.800 s. (a) What is his final speed? (b) How far does he travel?
A crate with mas 32 kg initially at rest on a warehouse floor is acted on by a net horizontal force of 130N. (a) What acceleration is produced? (b) How far does the crate travel in 13.0s?
(a) What force causes an automobile to move? (b) A propeller-driven airplane? (c) A rowboat?
A force of 1600 N acts parallel to a ramp to push a 300-kg piano into a moving van. The ramp is inclined at 20 . (a) What is the acceleration of the piano up the ramp? (b) What is the velocity of the piano when it reaches the top if the ramp is 4.0 m long and the piano starts from rest?
A .22 rifle bullet, traveling at 426 m/s strikes a large tree, which it penetratesto a depth of 0.130 m. The mass of the bullet is 1.80 g. Assume a constantretarding force. (a) How much time is required for the bullet to stop? (b) Whatforce, in newtons, does the tree exert on the bullet?
A 400-N body starts up the incline of 30o with the horizontal (fk = 0.2) with a velocity of 3m/s. a. How long must a 500-N horizontal force act on the body to increase its velocity to 8m/s? b. How far will the body travel while the force is acting?
The human head can be considered as a3.3-kg cranium protecting a 1.5-kg brain, with a small amount ofcerebrospinal fluid that allows the brain to move a little bit insidethe cranium. Suppose a cranium at rest is subjected to a force of2800 N for 6.5 ms in the forward direction. (a) What is the finalspeed of the cranium? (b) The back of the cranium then collideswith the back of the brain, which is still at rest, and the two movetogether. What is their final speed? (c) The cranium now hits anexternal object and suddenly comes to rest, but the brain continues to move forward. If the front of the brain interacts with thefront of the cranium over a period of 15 ms before coming to rest,what average force is exerted on the brain by the cranium?
What force does a trampoline have to apply to a 45.0-kggymnast to accelerate her straight up at 7.50 m/s2? Notethat the answer is independent of the velocity of thegymnast—she can be moving either up or down, or bestationary
(I) A constant friction force of 25 N acts on a 65-kg skierfor 15 s on level snow. What is the skier’s change in velocity?
The front 1.20 m of a 1 400-kg car is designed as a crumple zone that collapses to absorb the shock of a collision. If a car traveling 25.0 m/s stops uniformly in 1.20 m, (a) how long does the collision last, (b) what is the magnitude of the average force on the car, and (c) what is the acceleration of the car? Express the acceleration as a multiple of the acceleration of gravity.
A 75.0-kg ice skater moving at 10.0 m/s crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 5.00 m/s. Suppose the average force a skater can experience without breaking a bone is 4 500 N. If the impact time is 0.100 s, does a bone break?
. A jet aircraft with a mass of 4,500 kg has an engine that exerts a force (thrust) equal to 60,000 N. (a) What is the jets acceleration when it takes off? (b) What is the jet’s speed after it accelerates for 8 s? (c) How far does the jet travel during the 8 s?

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

College Physics

Physics

ISBN:

9781938168000

Author:

Paul Peter Urone, Roger Hinrichs

Publisher:

OpenStax College

Inquiry into Physics

Physics

ISBN:

9781337515863

Author:

Ostdiek

Publisher:

Cengage

SEE MORE TEXTBOOKS

7.25. What force does block A exert on block B in Ans. 15.0 N Fig. 7.13? 6 kg 2 kg 45 N A Figure 7.13