Question

A man weighing 750 N and a woman weighing 460 N have the same momentum. What...

A man weighing 750 N and a woman weighing 460 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

let the mass of man and woman is given as Mm and Mw

Wm = weight of man = Mm g = 750

Ww = weight of woman = Mw g = 460

Ratio of masses is given as

Mm/Mw = 750/460 = 1.63

Given that :

Momentum of man = Momentum of woman

Mm vm = Mw vw

(Mm /Mw) = vw/vm

vw/vm = 1.63

kinetic energy of man is given as

KEm = (0.5) Mm vm2   

and

kinetic energy of woman is given as

KEw = (0.5) Mw vw2   

Ratio of kinetic energy of man and woman is given as

KEm /KEw = (Mm/Mw ) (vm /vw)2

KEm /KEw = (1.63) (1/1.63)2 = 0.61

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1) A cardinal (Richmondena cardinalis) of mass 4.20×10−2 kg and a baseball of mass 0.140 kg...
1) A cardinal (Richmondena cardinalis) of mass 4.20×10−2 kg and a baseball of mass 0.140 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum? 2) A man weighing 750 N and a woman weighing 460 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?
A woman and man have approached you for genetic counseling and are concerned about a hereditary...
A woman and man have approached you for genetic counseling and are concerned about a hereditary form of deafness in their family. Both have normal hearing and there are no children. The woman's father has autosomal dominant sensory-neural deafness. Assume he is heterozygous. This hearing impairment displays onset at about age 10, and penetrance appears to be about 70%. There is no family history of deafness among the man's relatives. What is the probability that the woman is a carrier...
Consider a 20-g bullet (B) and a 60-kg runner (R). (a) If they have the same...
Consider a 20-g bullet (B) and a 60-kg runner (R). (a) If they have the same momentum, what is the ratio of their kinetic energies, KB/KR?(b) Ifthey have the same kinetic energy, what is the ratio of their momenta, PB/PR
A man and woman both have one parent who has albinism but both (man and woman...
A man and woman both have one parent who has albinism but both (man and woman ) have normal skin pigmentation. What is the probability that their first child will have albinism if albinism is a recessive trait?
How fast (km/h) must an 776 kg VW Beetle travel (a) to have the same linear...
How fast (km/h) must an 776 kg VW Beetle travel (a) to have the same linear momentum as a 2690 kg Cadillac going 11.8 km/h and (b) to have the same kinetic energy?
Two particles, the first with 2 times the mass of the second, have the same kinetic...
Two particles, the first with 2 times the mass of the second, have the same kinetic energy. What is the ratio between the magnitude of the momentum of the first particle and the magnitude of the momentum of the second particle?
If a man and a woman are heterozygous for a gene, and if they have three...
If a man and a woman are heterozygous for a gene, and if they have three children, what is the chance that all three will be homozygous recessive? Show work
If a man and a woman are heterozygous for a gene, and if they have three...
If a man and a woman are heterozygous for a gene, and if they have three children, what is the chance that all three will be homozygous recessive? Please show your work.
A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal...
A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was 6 feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. They have a daughter who is a dwarf with normal color vision. What is the probability that she is heterozygous for both genes?
At what speed does a 1000 kg compact car have the same kinetic energy as a...
At what speed does a 1000 kg compact car have the same kinetic energy as a 19000 kg truck going 22 km/hr ?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT