Thursday

January 29, 2015

January 29, 2015

Posted by **anonymous** on Friday, November 1, 2013 at 9:21am.

What is the distance L′ between the two skaters when the skater of mass m1 has moved a distance l? (in meters)

- physics(IMPORTANT) -
**bobpursley**, Friday, November 1, 2013 at 9:41amThe cneter of gravity has to remain at the same point.

measuring from the center of gravity point, then if d is the distance the m1 is frm the cg, then

50d=70(8-d) and after the jerk, then we know

50(d-2)=70(L'-(d-2)

you have two equations, two unknowns

solve the first equation for d

50d=560-70d

120d=560

d= 4 2/3

now the second equation..

50(d-2)=70(L'-d+2)

50(2 2/3)=70L' -70(4 2/3-2)

L'= 120(2 2/3)/70=4.7 m check my math, done in my head.

**Answer this Question**

**Related Questions**

Physics(IMPORTANT) - Two skaters of mass m1=50kg and m2=70kg are standing ...

Biomechanics - Two ice skaters start out motionless in the center of an ice rink...

Physics - A block of ice at 0 degrees C, whose mass is initially 40.0 kg, slides...

physics - A block of ice at 0°C whose mass initially is m = 48.4 kg slides along...

physic:( - Two ice skaters, Daniel (mass 70.0 ) and Rebecca (mass 45.0 ), are ...

Physics - An object with a mass of 20.1 kg is hung from two identical springs ...

physics - A block of ice at 0°C whose mass initially is m = 12.5 kg slides along...

Physics - Two identical ice skaters are holding onto opposite ends of a very ...

Physics - A trapeze artist weighs 8.00 x 10^2 N. The artist momentarily held to ...

Physics - Two skaters, Elena and Tara, face each other on the ice. Elena has a ...