# Physics

posted by .

Emily challenges her husband, David, to catch a \$1 bill as follows. She holds the bill vertically, with the center of the bill between David's index finger and thumb. David must catch the bill after Emily release it without moving his hand downward. If his reaction is 0.2 s, will he succeed? Explain your reasoning.

• Physics -

The bill is about 7 cm. high.
So David has to catch it before it falls through 7cm, assuming David's fingers are right below Emily's.
Here,
g=-9.8 m/s²
S=-0.07m
initial velocity, u =0
S=ut+(1/2)gt²
Solve for t to see if it exceeds 0.2 s.

## Similar Questions

1. ### Law(case analysis)

1. Identify all potential lawsuits (eg. parties and theories) which could occur. Case: David is a former employee of 123 Bytes. He enters the property of 123 Bytes, claiming that the company owes him \$1,000 in back wages. An argument …
2. ### government

the house rules committee may do all of the following except a. set conditions for considering a bill b. speed up consideration of a bill c. prevent consideration of a bill d. attach amendments to a bill c.
3. ### Simple Interest Applications

An investor purchased a 91-day, \$100,000 T-bill on its issue date for \$99,326.85. After holding it for 42 days, she sold the T-bill for a yield of 2.72%. a)What was the original yield of the T-bill?
4. ### math

Which of the following problems can be solved using the equation x-9=15?
5. ### Algebra

Tom has a \$20 bill, a \$10 bill, a \$5 bill, and \$1 bill. List the total costs possible for items he could buy if he receives no change.
6. ### goverment

Which term is applied to a legislator who introduces a bill?
7. ### physics

Why is the following situation impossible?
8. ### GA State History

7. appropriations and higher education are examples of what type of committee A. standing ** B. ad hoc C. conference D. interim study 10. if a bill goes to committee hoq can the committee kill the bill without asking for the General …
9. ### Math

David would like to buy a laptop computer and save 20 percent during sale. He uses his credit card to pay for it. David is counting on getting a lot of money in graduation presents from his parents' business associates. David knows …
10. ### English

1. Actors: John, Tom, David, Bill, Emily, Susan 2. Actors or Actresses: John, Tom, David, Bill, Emily, Susan 3. Actor: John, Tom, David, Bill, Emily, Susan ---------------------------------------In a play script, which one is grammatical?

More Similar Questions