Wednesday

August 20, 2014

August 20, 2014

Posted by **youlife** on Tuesday, September 10, 2013 at 7:14pm.

(a) How long (in s) did it take Alice to catch up with Mary?

(b) How far (in m) did Alice still have to run when she just caught up to Mary?

(c) How long (in s) did Alice take to reach the finish line after she just caught up to Mary?

Mary starts to accelerate when Alice just catches up to her, and accelerates all the way to the finish line and crosses the line exactly when Alice does. Assume Mary's acceleration is constant.

(d) What is Mary's acceleration (in m/s2)?

(e) What is Mary's velocity at the finish line (in m/s)?

**Related Questions**

mitx 8.01x Classical Mechanics - The vectors A⃗ = 1 x^− 2 y^ and B...

mitx 8.01x Classical Mechanics - For the following 3 vectors A⃗ =2y^+3z^ ...

MITx: 8.01x Classical Mechanics - An object of mass m is released from rest at a...

physics.............. - If you ever watch track and field at the Olympics, you'...

physics!!!!!!!!!! - If you ever watch track and field at the Olympics, you'll ...

mitx 8.01x Classical Mechanics - Mary wants to throw a can straight up into the...

MITx: 8.01x Classical Mechanics - Mary wants to throw a can straight up into the...

Classical Mechanics - During a track event two runners, Mary, and Alice, round ...

Calculus - An observer stands at a point P, one unit away from a track. Two ...

Physics - During 200 meter and 400 meter races, runners must stay in lanes as ...