A box with a mass of 7.0 kg is lifted (without acceleration) through a height of 1.5 m, in ord

Name: Problem 9, Chapter 6: Physics of Everyday Phenomena
Uploaded: 2024-03-19T06:02:31-08:00
Duration: 1 min 58 s
Channel: Mukesh Devi
Description: A box with a mass of 7.0 kg is lifted (without acceleration) through a height of 1.5 m, in order to place it on the shelf of a closet. a. What is the increase in potential energy of the box? b. How much work was required to lift the box to this position?

step 1 now here in this problem we are given that we have a box of mass 7 .0 kilogram and it is being l

Question

A box with a mass of $7.0 \mathrm{~kg}$ is lifted (without acceleration) through a height of $1.5 \mathrm{~m}$, in order to place it on the shelf of a closet. a. What is the increase in potential energy of the box? b. How much work was required to lift the box to this position?

   A box with a mass of $7.0 \mathrm{~kg}$ is lifted (without acceleration) through a height of $1.5 \mathrm{~m}$, in order to place it on the shelf of a closet.
a. What is the increase in potential energy of the box?
b. How much work was required to lift the box to this position?

Physics of Everyday Phenomena

Thomas W. Griffith,… 10th Edition

Chapter 6, Problem 9

Instant Answer

Solved by Expert Mukesh Devi

03/19/2024

Step 1

8 m/s²), and h is the height. PE = (7.0 kg)(9.8 m/s²)(1.5 m) PE = 102.9 J (joules) So, the increase in potential energy of the box is 102.9 J. b. The work required to lift the box to this position is equal to the increase in potential energy, since the only Show more…

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A box with a mass of $7.0 \mathrm{~kg}$ is lifted (without acceleration) through a height of $1.5 \mathrm{~m}$, in order to place it on the shelf of a closet. a. What is the increase in potential energy of the box? b. How much work was required to lift the box to this position?

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Key Concepts

Gravitational Potential Energy

This concept refers to the energy stored in an object due to its position in a gravitational field, typically calculated using the formula mgh, where m is mass, g is the acceleration due to gravity, and h is the height above a reference level. It is important because it quantifies the work required to raise an object against the gravitational force.

Work Done

Work in physics is defined as the transfer of energy when a force is applied to an object causing displacement. In the context of lifting an object, the work done is equivalent to the increase in gravitational potential energy, assuming the object is lifted at a constant speed with no other forces doing significant work.

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