8. Adult cheetahs, the fastest of the great cats, have a mass of about 70 kg and have been clocke running at up to 32 m/s. (a) How many joules of kinetic energy does such a cheetah have? (b) E what factor would its kinetic energy change if its speed were doubled? 9. From the second law of motion and the equation for velocity EF = má v²v+2a(x₂-1) Derive the Work - Energy equation: W = K₂-K₁ 10. A 15.0-kg stone slides down a snow-covered hill as shown in the figure below, leaving point A wit
8. Adult cheetahs, the fastest of the great cats, have a mass of about 70 kg and have been clocke running at up to 32 m/s. (a) How many joules of kinetic energy does such a cheetah have? (b) E what factor would its kinetic energy change if its speed were doubled? 9. From the second law of motion and the equation for velocity EF = má v²v+2a(x₂-1) Derive the Work - Energy equation: W = K₂-K₁ 10. A 15.0-kg stone slides down a snow-covered hill as shown in the figure below, leaving point A wit
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter11: Energy And Its Conservation
Section: Chapter Questions
Problem 44A
Related questions
Question
![8. Adult cheetahs, the fastest of the great cats, have a mass of about 70 kg and have been clocked
running at up to 32 m/s. (a) How many joules of kinetic energy does such a cheetah have? (b) By
what factor would its kinetic energy change if its speed were doubled?
9. From the second law of motion and the equation for velocity
Derive the Work - Energy equation:
ΣF = ma
v² = 1 + 2a(22-21)
W = K₂-K₁
10. A 15.0-kg stone slides down a snow-covered hill as shown in the figure below, leaving point A with
a speed of 10m/s There is no friction on the hill between points A and B. Calculate the velocity of
the stone when it reached point B
20 m
15 m-
B](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa89bbfa4-c7dd-4d51-95c6-e0faa7699a70%2F3d9080d7-1c0d-45ba-b500-7e822f80cb31%2Fs4y1d9i_processed.jpeg&w=3840&q=75)
Transcribed Image Text:8. Adult cheetahs, the fastest of the great cats, have a mass of about 70 kg and have been clocked
running at up to 32 m/s. (a) How many joules of kinetic energy does such a cheetah have? (b) By
what factor would its kinetic energy change if its speed were doubled?
9. From the second law of motion and the equation for velocity
Derive the Work - Energy equation:
ΣF = ma
v² = 1 + 2a(22-21)
W = K₂-K₁
10. A 15.0-kg stone slides down a snow-covered hill as shown in the figure below, leaving point A with
a speed of 10m/s There is no friction on the hill between points A and B. Calculate the velocity of
the stone when it reached point B
20 m
15 m-
B
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