Sam lifts a box with a weight of 12 N to a height of 2 meters. (E-S-A is only necessary for Part (a)) (a) How much GPE does the box have at this point? [E-S-A] (b) How much KE does the box have when held at this height? (c) If allowed to drop, what would its KE be just as it was about to hit the floor? (d) If allowed to drop, what would its KE be half way through the fall? GPE?

Sam lifts a box with a weight of 12 N to a height of 2 meters. (E-S-A is only necessary for Part (a)) (a) How much GPE does the box have at this point? [E-S-A] (b) How much KE does the box have when held at this height? (c) If allowed to drop, what would its KE be just as it was about to hit the floor? (d) If allowed to drop, what would its KE be half way through the fall? GPE?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 32PQ: The Flybar high-tech pogo stick is advertised as being capable of launching jumpers up to 6 ft. The...

See similar textbooks

Related questions

Q: What is the kinetic energy of 1 kg of air (about 1 m3) moving at 15 m/s (about 32 mph)? If it takes…

Q: A 169.5 lb hiker is able to ascend a 1,980.0 ft high slope in 1 hour and 45 minutes. (a) How much…

A: Given : F = 169.5 lb d = 1980 ft t = 1 hour 45 minutes = 6300 seconds

Q: The human heart is a powerful organ. If your heart can take in and discharge about 6773.2 liters of…

A: Given Volume of blood , V = 6773.2 L Density of blood , D = 1.06 kg/L Height lift ,H = 1.7 m Time…

Q: The work done by an external force to compress an ideal spring can be written as kat ka? Wif - 2 2…

A: Given: The work done by an external force to compress the spring is, Wi→f=kxf22-kxi22

Q: When water flows through river rapids or over a waterfall, it experiences a decrease in height and…

A: Basic Details The gravitational potential energy of the water depends on the height of the…

Q: (a) What is the efficiency of an out-of-condition professor who does 2.00 ✕ 105 J of useful work…

A: The efficiency of is calculated as useful workmetabolizing enegy×100%

Q: A roller-coaster car of mass 1.50 x 10° kg is initially at the top of a rise at point @. It then…

A: Part A:

Q: For how much time can a 70 kg person ride a bike at 15 km/hr on a flat path, using only the energy…

A: Given: The metabolic power P = 480 W Mass of a rider m = 70 kg. Velocity of rider v = 15 km/hr =…

Q: A trough is 6 meters long, 3 meters wide, and 5 meters deep. The vertical cross- section of the…

A: Given data: A trough is 6 meters long 3 meters wide and 5 meters deep. The vertical cross-section of…

Q: Stretching a non-linear spring requires an amount of work given by the equation U=15x^2-10x^3, where…

A: Given: Potential energy at a given position x: U=15x2 - 10x3

Q: A student evaluates a weight loss program by calculating the number of times he would need to dlimb…

A: Given: Total height , h=16.0 m Weight fat lose , m=0.45 kg 1 kg of fat can produce chemical 3.77×107…

Q: In the figure, a block of mass m = 2.5 kg slides head on into a spring of spring constant k= 320…

A: Given:Mass of the block, m = 2.5 kgSpring constant, k = 320 N/mDisplacement of the spring, x = 7.5…

Q: A rock with a mass of 2.80 kg is moving with velocity (6.201 1.40ĵ) m/s. (HINT: v² = v.v.) (a) What…

A: mass of rock = 2.80 kg velocity vector = (6.20i^ - 1.40j^) m/s

Q: A 7.80-g bullet moving at 650 m/s penetrates a tree trunk to a depth of 5.80 cm. (a) Use work and…

Q: work done by F

Q: A large cruise ship of mass 6.20 x 10' kg has a speed of 11.6 m/s at some instant. (a) What is the…

Q: A tank has the shape of an inverted right circular cone with height 9m and radius 18m. It is filled…

A: A tank is shaped like an inverted right circular cone with a height of 9m and a radius of 18m. If…

Q: Suppose that the average U.S. household uses 14100 kWh (kilowatt-hours) of energy in a year. If the…

Q: An electric elevator with a motor at the top has a multistrand cable weighing 4 lb/ft. When the car…

Q: The force required to compress a non-standard spring as a function of displacement is given by the…

A: We have an expression for force that is required to compress a non-standard spring as a function of…

Question

2. Sam lifts a box with a weight of 12 N to a height of 2 meters. (E-S-A is only necessary for Part (a))
(a) How much GPE does the box have at this point? (E-S-A]
(b) How much KE does the box have when held at this height?
(c) If allowed to drop, what would its KE be just as it was about to hit the floor?
(d) If allowed to drop, what would its KE be half way through the fall?
GPE?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Coal is lifted out of a mine a vertical distance of 50 m by an engine that supplies 500 W to a conveyer belt. How much coal per minute can be brought to the surface? Ignore the effects of friction.
A 100 — kg man is skiing across level ground at a speed of 8.0 m/s when he comes to the small slope 1.8 m higher than ground level shown in the following figure. (a) If the skier coasts up the bill, what is his speed when he reaches the top plateau? Assume friction between the snow and skis is negligible. (b) What is his speed when he reaches the upper level if an 80 — N frictional force acts on the skis?
“ E=K+Uconstant is a special case of the work energy theorem.” Discuss this statement.
When jogging at 13 km/h on a level surface, a 70-kg man uses energy at a rate of approximately 850 W. Using the facts that the “human engine” is approximately 25 efficient, determine the rate at which this man uses energy when jogging up a 5.0 slope at this same speed. Assume that the frictional retarding force is the same in both cases.
A particle of mass 2.0 kg moves under the influence of the force F(x)=(3/x)N. If its speed at x=2.0 m is v=6.0 m/s, what is its speed at x = 7.0 m?
In a Coyote/Road Runner cartoon clip (https://openstaxcollege.org/l/21coyroadcarcl), a spring expands quickly and sends the coyote into a rock. If the spring extended 5 m and sent the coyote of mass 20 kg to a speed of 15 m/s, (a) what is the spring constant of this spring? (b) If the coyote were sent vertically into the air with the energy given to him by the spring, how high could he go if there were no non-conservative forces?
At the start of a basketball game, a referee tosses a basketball straight into the air by giving it some initial speed. After being given that speed, the ball reaches a maximum height of 4.25 m above where it started. Using conservation of energy, find a. the balls initial speed and b. the height of the ball when it has a speed of 2.5 m/s.
What average power is generated by a 70.0-kg moun-tain climber who climbs a summit of height 325 in in 95.0 min? (a) 39.1 W (b) 54.6 W (c) 25.5 W (d) 67.0 W (e) 88.4 W
Two students throw identical snowballs from the same height; both snowballs having the same initial speed vo ( Fig. 4.25). Which snowball has the greater speed on striking the level ground at the bottom of the slope? Justify your answer using energy considerations. Figure 4.25 Away They Go! See Short Answer Question 16.
A block of mass 0.250 kg is placed on top of a light, vertical spring of force constant 5 000 N/m and pushed downward so that the spring is compressed by 0.100 m. After the block is released from rest, it travels upward and then leaves the spring. To what maximum height above the point of release does it rise?
A typical automobile engine has an efficiency of 25 . Suppose that the engine of a 1000-kg automobile has a maximum power output of 140 hp. What is the maximum grade that the automobile can climb at 50 km/h if the frictional retarding force on it is 300 N?
For the situation in Fig. 4.4a, if the applied force is removed, then the frictional force will continue to do work, so there is an energy transfer. Explain this transfer.