Homework Help: Science

Posted by Christina on Monday, June 6, 2011 at 6:23pm.

A stationary roller coaster at the top of its path is 30m about the ground. The car and its passengers have a mass of 400kg. What is the velocity of the car when it reaches the ground lever? The formula for velocity is (Distance/time)

Science - bobpursley, Monday, June 6, 2011 at 6:45pm
the gain in Kinetic energy is equal to the loss of potential energy

1/2 m v^2=mgh
solve for v
Science - Damon, Monday, June 6, 2011 at 6:45pm
mass cancels out, irrelevant

m g h = (1/2) m v^2

2 g h = v^2

v = sqrt (2 g h)

v = sqrt (2*9.8*30)

v = 24.2 m/s

Answer this Question

Related Questions

Physics - Steel Phantom is a roller coaster in Pennsylvania that, like the ...
physics - A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80...
Physics - The track near the top of your favorite roller coaster has a circular ...
Physics - The track near the top of your favorite roller coaster has a circular ...
physics - A roller coaster has a vertical loop with radius 17.9 m. With what ...
Physics - Consider a roller coster car moving along a track from point A to ...
science - When the roller coaster is at the top of the loop, why doesn’t ...
physics - 3.A roller coaster has a vertical loop with radius 27.1 m. With what ...
physic - A roller-coaster car has a mass of 500 kg when fully loaded with ...
Physics - we are doing a really dumb websearch in my Physics class on roller ...

For Further Reading

First Name:
School Subject:
Answer: