Posted by **Julio** on Sunday, September 7, 2008 at 6:53pm.

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?

- Physics -
**bobpursley**, Sunday, September 7, 2008 at 7:01pm
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

## Answer this Question

## Related Questions

- Physics - You and your friend are practicing pass plays with a football. You ...
- Physics - A hitter hits a baseball into the air. The shortstop, who was ...
- Physics - A physics student who is late for school is trying to catch her bus. ...
- Dynamics - A quarterback throws a football with a velocity vo at an angle of 45o...
- physics - A football is kicked off with an initial speed of 65 ft/s at a ...
- Physics - A football is kicked off with an initial speed of 63 ft/s at a ...
- physics - A football punter accelerates a football from rest to a speed of 9 m/s...
- physics - a football punter accelerates a football from rest to a speed of 7 m/s...
- physics - A football punter accelerates a football from rest to a speed of 10 m/...
- physics - A football punter accelerates a football from rest to a speed of 10 m/...

More Related Questions