# Physics

During a football game, A is 8.0 m behind B and is running at 7.0 m/s when B catches the ball and starts to accelerate away at 2.8 m/s(squared) from rest.

a) Will A catch B? If so, after how long?
b) How far down the field will B have run?

1. ๐ 0
2. ๐ 0
3. ๐ 39
1. Assuming B was at a standstill, then to catch her, they must travel the same distance in the same time.

dA=-8+7t
dB=1/2 2.8 t^2
setting them equal, see if you can get a time...
-8+7t=1.4t^2
put it in quadratic form, and solve for t. If you get a positive t, then they meet

1. ๐ 0
2. ๐ 0
posted by bobpursley

## Similar Questions

1. ### Algebra

In a football game, a running back ran for 5 and 7 yards on his last two runs. His total yardage for the whole game is 78 yards. Which expression shows how many yards the running back had before those two runs?\ PLEASE HELP I

2. ### algebra 1

in a football game a running back ran for -7 and -5 yards on his last two runs. his total yardage for the whole game is 78 yards. which expression shows how many yards the running back had before those two runs a. 78-5-7*** b.

asked by YOLO on September 6, 2016
3. ### ELA

Which sentence has a conditional verb mood? A) If you score another touchdown, your team will win. B) At last week's football game, you scored two touchdowns! C) I wondered who scored a touchdown at the football game? D) The team

asked by Zoey on November 1, 2017
4. ### maths

In 2013 all the 180, student of a class played either chess polo or tennis of two out of there 3 game or all the 3 game 84 of them played chess 87 played polo and 87 played tenins 39 pay led only polo and 16 played both chess and

asked by NIKHIL jain on September 9, 2016
5. ### physics

15. During the opening kickoff of a college football game, the kicker kicks a football with an initial velocity of 27.5 m/s at an angle of 41ยฐ above horizontal. I. What is the time of flight for the ball? II. How far does it

asked by emily on October 15, 2017
6. ### Microeconomics

The statement, "Assuming that if it is rational for one person to stand at a football game to get a better view then it is rational for everyone to stand at a football game to get a better view" is an example of: economic

asked by Kathy on May 26, 2009
7. ### english

Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. ยท Bold each adverb. ยท Underline each adjective. ยท Compare the event to one or more

asked by mike on August 14, 2011
8. ### Math

90 members of a sport club plays at least one of the game tennis,football and volleyball,10 plays tennis and football,19 play football and volleyball and 29 plays tennis and volleyball.x people plays all the 3 games,while x people

asked by Andrew on December 8, 2015
9. ### GRADE 12 APPLIED MATH

There are online sports sites which offer free game simulations. For example, you can pick a sport (baseball, basketball, football, college football or basketball and hockey). Then pick any two teams from the same or different

asked by V on January 27, 2018
10. ### physics

An LSU football defender is 6 m behind a Georgia Tech receiver who has the football and is d meters from making a touchdown. If the LSU player is running at 5 m/s and the receiver is running at 4 m/s, what is the furthest

asked by simonnnnnnnuuuu on July 29, 2013

More Similar Questions