Inquiry Into Physics
Inquiry Into Physics
8th Edition
ISBN: 9781305959422
Author: Ostdiek, Vern J.
Publisher: Cengage Learning,
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Chapter 3, Problem 8C
To determine

To prove:

The work done by a force is equal to the kinetic energy of the object.

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Since the initial potential energy and final kinetic energy are zero, our equation now becomes EP,f = EK,i. We can then substitute the formula for kinetic energy,  EK = 1/2mv2,  and the formula for gravitational potential energy,  EP = mgh, mghf = 1/2mvi2. Now it's just a matter of doing the algebra, solving for the final height  hf,  and substituting values to find  hf.  Notice that the mass m divides out of both sides of the equation, so the value of the mass is not needed to find the final height. Calculate the maximum height of the ball in meters. hf = __________ m
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Chapter 3 Solutions

Inquiry Into Physics

Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 8QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 10QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 12QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 16QCh. 3 - Prob. 17QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 21QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 25QCh. 3 - (Indicates a review question, which means it...Ch. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 28QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 30QCh. 3 - Prob. 31QCh. 3 - Prob. 32QCh. 3 - (Indicates a review question, which means it...Ch. 3 - Prob. 34QCh. 3 - (¦ Indicates a review question, which means it...Ch. 3 - A sprinter with a mass of 65 kg reaches a speed of...Ch. 3 - Which has the larger linear momentum: a 2,000-kg...Ch. 3 - In Section 2.4, we computed the force needed to...Ch. 3 - A runner with a mass of 80 kg accelerates from 0...Ch. 3 - In Section 1.4, we considered the collision of a...Ch. 3 - A basketball with a mass of 0.62 kg falls...Ch. 3 - A pitcher throws a 0.5-kg ball of clay at a 6-kg...Ch. 3 - A 3,000-kg truck runs into the rear of a 1,000-kg...Ch. 3 - A 50-kg boy on roller skates moves with a speed of...Ch. 3 - . Two persons on ice skates stand face to face and...Ch. 3 - . A loaded gun is dropped on a frozen lake. The...Ch. 3 - . A running back with a mass of 80 kg and a speed...Ch. 3 - . A motorist runs out of gas on a level road 200 m...Ch. 3 - . In Figure 3.10, the rock weighs 100 lb and is...Ch. 3 - . A weight lifter raises a 100-kg barbell to a...Ch. 3 - Prob. 16PCh. 3 - . A personal watercraft and rider have a combined...Ch. 3 - As it orbits Earth, the 11,000-kg Hubble Space...Ch. 3 - . The kinetic energy of a motorcycle and rider is...Ch. 3 - . In compressing the spring in a toy dart gun,...Ch. 3 - . An archer using a simple bow exerts a force of...Ch. 3 - A worker at the top of a 629-m-tall television...Ch. 3 - . A 25-kg child uses a pogo stick to bounce up and...Ch. 3 - . A student drops a water balloon out of a dorm...Ch. 3 - . A child on a swing has a speed of 7.7 m/s at the...Ch. 3 - . The cliff divers at Acapulco, Mexico, jump off a...Ch. 3 - . At NASA's Zero Gravity Research Facility in...Ch. 3 - . The fastest that a human has run is about 12...Ch. 3 - . A bicycle and rider going 10 m/s approach a...Ch. 3 - . In January 2003, an 18-year-old student gained a...Ch. 3 - The ceiling of an arena is 20 m above the floor....Ch. 3 - . Compute how much kinetic energy was “lost” in...Ch. 3 - Compute how much kinetic energy was “lost” in the...Ch. 3 - . A 1,000-W motor powers a hoist used to lift cars...Ch. 3 - . How long does it take a worker producing 200 W...Ch. 3 - . An elevator is able to raise 1,000 kg to a...Ch. 3 - . A particular hydraulic pile driver uses a ram...Ch. 3 - . A compact car can climb a hill in 10 s. The top...Ch. 3 - . In the annual Empire State Building race,...Ch. 3 - . It takes 100 minutes for a middle-aged physics...Ch. 3 - . Two small 0.25-kg masses are attached to...Ch. 3 - Rank the following three collisions in terms of...Ch. 3 - A bullet with a mass of 0.01 kg is tired...Ch. 3 - In a head-on, inelastic collision, a 4,000-kg...Ch. 3 - Prob. 4CCh. 3 - Prob. 5CCh. 3 - The "shot" used in the shot-put event is a metal...Ch. 3 - Prob. 7CCh. 3 - Prob. 8CCh. 3 - A series of five 0.1-kg spheres are arrayed along...
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