Question 426729: My daughter has this question in a maths book
A) Dropped from 1 meter onto a hard surface, a golf ball bounced 49cm; calculate e, the coefficient of restitution, or bounciness. Of the ball.
B) The ball weighed 46g, and was hit by a 200g club-head travelling at45m/s.
Calculate vm/s, the speed of the ball as it left the club-head, to the nearest m/s,
I have worked this out to be 200*45(1+1.43)
200+46
C) Find the length L yards of the drive in b, to the nearest yard.
The answer is suppose to be A) 0.7 B) 62 m/s C) 228 yards.
I cant see were I’m going wrong please help
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! My daughter has this question in a maths book
A) Dropped from 1 meter onto a hard surface, a golf ball bounced 49cm; calculate e, the coefficient of restitution, or bounciness. Of the ball.
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I was able to find an online site for coefficient of restitution.
Cr = sqrt[h/H] where h is bounce height and H is drop height
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Cr = sqrt[49/100] = 7/10 = 0.7
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Note: I cannot find an online site that explains club head speed
and distance calculations.
Maybe your daughter's book has formulas you can use and/or
calculation examples.
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Cheers,
Stan H.
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B) The ball weighed 46g, and was hit by a 200g club-head travelling at45m/s.
Calculate vm/s, the speed of the ball as it left the club-head, to the nearest m/s,
I have worked this out to be 200*45(1+1.43)
200+46
C) Find the length L yards of the drive in b, to the nearest yard.
The answer is suppose to be A) 0.7 B) 62 m/s C) 228 yards.
I cant see were I’m going wrong please help
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