A 53.0 kg cheetah accelerates from rest to its top speed of 33.3 m/s.(a)How much net work (in J) is required for the cheetah to reach its top speed? (b)One food Calorie equals 4186 J. How many Calories of net work are required for the cheetah to reach its top speed? Note: Due to inefficiencies in converting chemical energy to mechanical energy, the amount calculated here is only a fraction of the energy that must be produced by the cheetah's body.

Question
Asked Dec 8, 2019
1 views

A 53.0 kg cheetah accelerates from rest to its top speed of 33.3 m/s.

(a)
How much net work (in J) is required for the cheetah to reach its top speed?
 
(b)
One food Calorie equals 4186 J. How many Calories of net work are required for the cheetah to reach its top speed? Note: Due to inefficiencies in converting chemical energy to mechanical energy, the amount calculated here is only a fraction of the energy that must be produced by the cheetah's body.
 
 
check_circle

Expert Answer

Step 1

a)

The required work...

help_outline

Image Transcriptionclose

W =-mv? (53)(333)* = 2.94x10* J

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Using energy considerations, calculate the distance the 65.0-kg baseball player slides,given that hi...

A: The initial kinetic energy of the system is

question_answer

Q: The brightest star in the sky is Sirius, the Dog Star. Itis actually a binary system of two stars, t...

A: The radius is given by,

question_answer

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32P, how many grams will remain ...

A: Part (a):Given,

question_answer

Q: A leaky bucket, which weighs 5 N empty and initially has 40 N worth of water in it, is lifted into t...

A: Given

question_answer

Q: A 0.940 kg wooden block is attached vertically to a spring with a spring constant of 13.0 N/m. The w...

A: The period of oscillation is,Substitute the values,

question_answer

Q: A thin uniform rod has a length of 0.480 m and is rotating in a circle on a frictionless table. The ...

A: Click to see the answer

question_answer

Q: A 1.40-kg wooden block rests on a table over a large hole as in the figure below. A 3.80-g bullet wi...

A: Let vi be the initial velocity of bullet, m be its mass, M be the mass of the wooden block, g be the...

question_answer

Q: If a room has a temperature of 23.9∘C, what is the temperature difference between the boiling point ...

A: Let T be the room temperature and T0 be the boiling point of water.Write the values of the temperatu...

question_answer

Q: The flow rate of blood through a 2.00×10–6-m -radius capillary is 3.80×109 cm3 /s.  What is the spee...

A: Speed of blood flow is,