Posted by shannon on Thursday, July 3, 2008 at 10:19am.
The kinetic energy (1/2) M V^2 will equal the lost potential energy (20,000 J) at the bottom of the hill. This assumes that it had nearly zero kinetic energy at the top of the hill.
You know M, so solve for V.
V = sqrt(2*20,000/M)
Related Questions
science - A 250.0 kg roller coaster car has 20,000 J of potential energy at the ...
Physical Science-please help - A 250.0 kg roller coaster car has 20000 J of ...
Physical Science - A 250.0 kg roller coaster has 2.000 x 10^4 Joule of ...
Physics - Another question :) At the top of its drop hill, a 1,000 kg roller ...
9th grade -physical science - a the top of a hill a rollercoaster has 67,500j of...
Physical Science - What is the Mechanical energy of a 500-kg roller-coaster car ...
8th grade physical science - You are on roller blades on top of a small hill. ...
PHYSICS - An 800.0 kg roller coaster car is at rest at the top of a 95 m hill. ...
physics - 2. A car of mass 1540 kg traveling at 28 m/s is at the foot of a hill ...
physics - 4. An 800.0 kg roller coaster car is at rest at the top of a 95 m hill...
For Further Reading
