Physical Universe
16th Edition
ISBN: 9781259664991
Author: KRAUSKOPF
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 33E
A ball is thrown upward from the edge of a cliff with an initial speed of 6 m/s. (a) How fast is it moving 0.5 s later? In what direction? (b) How fast is it moving 2 s later? In what direction? (Consider upward as + and downward as –; then ν1 = +6 m/s and g = –9.8 m/s2.)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A bullet was fired vertically upwards from the building 100 meters high. If the bullet reaches the ground after 10 seconds and the acceleration due to gravity is 10m / s², then the velocity of the bullet when it leaves the rifle is....
40 m/s²
60 m/s²
80 m/s²
100 m/s²
120 m/s²
A small rocket fired straight up. When a height of 5.0km and velocity of 200.0m/s, it releases its booster and enters free fall. Calculate the total time of flight between releasing its boosters and falling back nd hitting the ground.
A. 20.4s
B. 40.8s
C. 37.9s
D. 58.3 s
A kid in a wagon rolls from rest down a hill and reaches the bottom at 12 m/s. On the next run she gets a push and starts down at 5.0 m/s. At what speed does she now arrive at the bottom? (Hint: If you think it’s 17 m/s, think again!)
7 m/s
12 m/s
13 m/s
17 m/s
Chapter 2 Solutions
Physical Universe
Ch. 2 - Which of the following quantities is not a vector...Ch. 2 - Which of the following statements is incorrect? a....Ch. 2 - A box suspended by a rope is pulled to one side by...Ch. 2 - The sum of two vectors is a minimum when the angle...Ch. 2 - In which of the following examples is the motion...Ch. 2 - Two objects have the same size and shape but one...Ch. 2 - The acceleration of a stone thrown upward is a....Ch. 2 - You are riding a bicycle at constant speed when...Ch. 2 - When an object is accelerated, a. its direction...Ch. 2 - If we know the magnitude and direction of the net...
Ch. 2 - The weight of an object a. is the quantity of...Ch. 2 - Compared with her mass and weight on the earth, an...Ch. 2 - The earth and the moon exert equal and opposite...Ch. 2 - A car that is towing a trailer is accelerating on...Ch. 2 - When a boy pulls a cart, the force that causes him...Ch. 2 - In order to cause something to move in a circular...Ch. 2 - An object is moving in a circle with a constant...Ch. 2 - A car rounds a curve on a level road. The...Ch. 2 - The centripetal force that keeps the earth in its...Ch. 2 - The gravitational force with which the earth...Ch. 2 - The speed needed to put a satellite in orbit does...Ch. 2 - An astronaut inside an orbiting satellite feels...Ch. 2 - A bicycle travels 12 km in 40 min. Its average...Ch. 2 - Which one or more of the following sets of...Ch. 2 - An airplane whose airspeed is 200 km/h is flying...Ch. 2 - A ship travels 200 km to the south and then 400 km...Ch. 2 - How long does a car whose acceleration is 2 m/s2...Ch. 2 - A ball is thrown upward at a speed of 12 m/s. It...Ch. 2 - A car that starts from rest has a constant...Ch. 2 - A car traveling at 10 m/s begins to be accelerated...Ch. 2 - A car with its brakes applied has an acceleration...Ch. 2 - The distance the car in Multiple Choice 31 travels...Ch. 2 - A bottle falls from a blimp whose altitude is 1200...Ch. 2 - When a net force of 1 N acts on a 1-kg body, the...Ch. 2 - When a net force of 1 N acts on a 1-N body, the...Ch. 2 - A car whose mass is 1600 kg (including the driver)...Ch. 2 - A 300-g ball is struck with a bat with a force of...Ch. 2 - A bicycle and its rider together have a mass of 80...Ch. 2 - The weight of 400 g of onions is a. 0.041 N b. 0.4...Ch. 2 - A salami weighs 3 lb. Its mass is a. 0.31 kg b....Ch. 2 - An upward force of 600 N acts on a 50-kg...Ch. 2 - The upward force the rope of a hoist must exert to...Ch. 2 - The radius of the circle in which an object is...Ch. 2 - A car rounds a curve at 20 km/h. If it rounds the...Ch. 2 - A 1200-kg car whose speed is 6 m/s rounds a turn...Ch. 2 - If the earth were 3 times as far from the sun as...Ch. 2 - A woman whose mass is 60 kg on the earths surface...Ch. 2 - A man whose weight is 800 N on the earths surface...Ch. 2 - A woman standing before a cliff claps her hands,...Ch. 2 - The starter of a race stands at one end of a line...Ch. 2 - In 1977 Steve Weldon ate 91 m of spaghetti in 29...Ch. 2 - A snake is slithering toward you at 1.5 m/s. If...Ch. 2 - A woman jogs for 2 km at 8 km/h and then walks for...Ch. 2 - Three forces, each of 10 lb, act on the same...Ch. 2 - Is it correct to say that scalar quantities are...Ch. 2 - A man is rowing at 8 km/h in a river 1.5 km wide...Ch. 2 - A woman walks 70 m to an elevator and then rises...Ch. 2 - Two tugboats are towing a ship. Each exerts a...Ch. 2 - Can a rapidly moving object have the same...Ch. 2 - The acceleration of a certain moving object is...Ch. 2 - A car whose acceleration is constant reaches a...Ch. 2 - The brakes of a car are applied to give it an...Ch. 2 - A car starts from rest and reaches a speed of 40...Ch. 2 - The brakes of a car moving at 14 m/s are applied,...Ch. 2 - A car is moving at 10 m/s when it begins to be...Ch. 2 - The driver of a train moving at 20 m/s applies the...Ch. 2 - A car starts from rest and covers 400 m (very...Ch. 2 - Is it true that something dropped from rest falls...Ch. 2 - A rifle is aimed directly at a squirrel in a tree....Ch. 2 - The acceleration of gravity on the surface of...Ch. 2 - When a football is thrown, it follows a curved...Ch. 2 - A crate is dropped from an airplane flying...Ch. 2 - A stone is thrown horizontally from a cliff and...Ch. 2 - (a) Imagine that Charlotte drops a ball from a...Ch. 2 - A person in a stationary elevator drops a coin and...Ch. 2 - How fast must a ball be thrown upward to reach a...Ch. 2 - A person dives off the edge of a cliff 33 m above...Ch. 2 - A ball dropped from the roof of a building takes 4...Ch. 2 - A ball is thrown downward at 12 m/s. What is its...Ch. 2 - When will a stone thrown vertically upward at 9.8...Ch. 2 - A ball is thrown upward from the edge of a cliff...Ch. 2 - The air resistance experienced by a falling object...Ch. 2 - A ball is thrown vertically upward with an initial...Ch. 2 - A rifle is aimed directly at the bulls-eye of a...Ch. 2 - An airplane is in level flight at a speed of 100...Ch. 2 - A ball is thrown horizontally from the roof of a...Ch. 2 - A bullet is fired horizontally from a rifle at 200...Ch. 2 - An airplane whose speed is 60 m/s is flying at an...Ch. 2 - A person at the masthead of a sailboat moving at...Ch. 2 - Compare the tension in the coupling between the...Ch. 2 - In accelerating from a standing start to a speed...Ch. 2 - A 12,000-kg airplane launched by a catapult from...Ch. 2 - The brakes of a 1200-kg car exert a force of 4 kN....Ch. 2 - A force of 20 N gives an object an acceleration of...Ch. 2 - A bicycle and its rider together have a mass of 80...Ch. 2 - A 430-g soccer ball at rest on the ground is...Ch. 2 - A car and driver with a total mass of 1600 kg has...Ch. 2 - Before picking up the passengers, the driver of...Ch. 2 - Consider the statement: Sara weighs 55 kg. What is...Ch. 2 - When a force equal to its weight is applied to an...Ch. 2 - A person weighs 85 N on the surface of the moon...Ch. 2 - A mass of 8 kg and another of 12 kg are suspended...Ch. 2 - An 80-kg man slides down a rope at constant speed....Ch. 2 - How much force is needed to give a 5-kg box an...Ch. 2 - A parachutist whose total mass is 100 kg is...Ch. 2 - A person in an elevator suspends a 1-kg mass from...Ch. 2 - A person stands on a scale in an elevator. When...Ch. 2 - A 60-kg person stands on a scale in an elevator....Ch. 2 - Since the opposite forces of the third law of...Ch. 2 - What is the relationship, if any, between the...Ch. 2 - A book rests on a table. (a) What is the reaction...Ch. 2 - A car with its engine running and in forward gear...Ch. 2 - An engineer designs a propeller-driven spacecraft....Ch. 2 - Two children wish to break a string. Are they more...Ch. 2 - When a 5-kg rifle is fired, the 9-g bullet is...Ch. 2 - Where should you stand on the earths surface to...Ch. 2 - Under what circumstances, if any, can something...Ch. 2 - A person swings an iron ball in a vertical circle...Ch. 2 - A car makes a clockwise turn on a level road at...Ch. 2 - When you whirl a ball at the end of a string, the...Ch. 2 - A 40-kg crate is lying on the flat floor of a...Ch. 2 - The greatest force a level road can exert on the...Ch. 2 - Find the minimum radius at which an airplane...Ch. 2 - Some people believe that aliens from elsewhere in...Ch. 2 - The 200-g head of a golf club moves at 40 m/s in a...Ch. 2 - An airplane flying at a constant speed of 160 m/s...Ch. 2 - A track team on the moon could set new records for...Ch. 2 - If the moon were half as far from the earth as it...Ch. 2 - Compare the weight and mass of an object at the...Ch. 2 - A hole is bored to the center of the earth and a...Ch. 2 - Is the suns gravitational pull on the earth the...Ch. 2 - The centripetal force that keeps the moon in its...Ch. 2 - According to Keplers second law, the earth travels...Ch. 2 - A 2-kg mass is 1 m away from a 5-kg mass. What is...Ch. 2 - A dishonest grocer installs a 100-kg lead block...Ch. 2 - A bull and a cow elephant, each of mass 2000 kg,...Ch. 2 - An airplane makes a vertical circle in which it is...Ch. 2 - Two satellites are launched from Cape Canaveral...Ch. 2 - Is an astronaut in an orbiting spacecraft actually...Ch. 2 - With the help of the data in Table 17-1, find the...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A pebble is dropped from rest from the top of a tall cliff and falls 4.9 m after 1.0 s has elapsed. How much farther does it drop in the next 2.0 s? (a) 9.8 m (b) 19.6 m (c) 39 m (d) 44 m (e) none of the abovearrow_forwardCompare the time in the air of a basketball player who jumps 1.0 m vertically off the floor with that of a player who jumps 0.3 m vertically.arrow_forwardAn astronaut hits a golf ball on the Moon. Which of the following quantities, if any, remain constant as a ball travels through the vacuum there? (a) speed (b) acceleration (c) horizontal component of velocity (d) vertical component of velocity (e) velocityarrow_forward
- What is the acceleration of a rock thrown straight upward on the way up? At the top of its flight? On the way down? Assume there is no air resistance.arrow_forwardA Car traveling at 10 m/s begins to be accelerated at 12m/s^2. The distance the car covers in the first 5 seconds after the acceleration begins is a) 60 m b) 150 m c) 80 m D) 200 marrow_forwardA stone is dropped from a captive balloon at an elevation of 1000 ft (304.8 m). Two seconds later another stone is thrown vertically upward from the ground with a velocity of 248 ft/s (75.6 m/s). If g = 32 ft/s2 (9.75 m/s2), when and where the stones pass each other?arrow_forward
- A ball is thrown upward with a speed of 20 m/s. What is its speed 3 seconds later? Which below is correct? 50 m/s 60 m/s 10 m/s/s 10 m/sarrow_forwardYou drop a large rock off of a tall cliff from rest. If the rock falls for 4 seconds, calculate the velocity of the rock. Assume g = 10 m/s^2. a. 2 m/s. b. 40 m/s. c. 80 m/s. d. 12 m/s.arrow_forwardAn object initially at rest accelerates a distance of 20 meters in 4 seconds. What is the object's velocity after 4 seconds have passed? 10 m/s 24 m/s 16 m/s 5 m/sarrow_forward
- A Car traveling at 10 m/s begins to be accelerated at 1.2m/s^2. When the car reaches a velocity of 16m/s after the acceleration begins, how much time does the car takes to accelerate: a) 60 seconds b) 15 seconds c) 5 seconds D) 20 secondsarrow_forwardSophia drives 30 km at an average speed of 60 km/h and then 30 km at an average speed of 30 km/h. Sophia’s average speed over the 60 km is a 53 km/h b 50 km/h c 45 km/h d 35 km/h e 40 km/harrow_forwardAn object with intial speed of 12 m/s west, accelerates constantly for 4 s by 3 m/s2 east. By this this time, it would have travelled a distance of: a. 72m b. 36 m c. 54 m d. 24 m e. 12 marrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY