Saturday

January 31, 2015

January 31, 2015

Posted by **sarah** on Saturday, May 31, 2008 at 7:06pm.

- COLLEGE PHYSICS -
**drwls**, Saturday, May 31, 2008 at 7:26pmThe initial total(kinetic + potential) energy, with respect to ground level zero P.E., is

(1/2) M V^2 + M g H = 1728 J + 147,150 J = 148,778 J. If it loses 20,000 J before reaching the next peak, and has 2.0 m/s velocity there, then

128,778 = (1/2) M V^2 + M g H'

= 1200 + M g H'

Solve for the new maximum height, H'. I get H' = 21.7 m.

I used 9.81 m/s^2 for g. No guarantees here.. check my assumptions and calculations.

**Answer this Question**

**Related Questions**

Physics - A rollercoaster car starts at rest on top of a frictionless hill of ...

Physics - For a rollercoaster, a hydraulic catapult propels the car to the top ...

physics - An inquisitive physics student, wishing to combine pleasure with ...

physics - in a game a toy car slides down a slop if the top of the slope is 2 m ...

physics - a car is moving on a horizontal frictionless road and reches base of ...

physics - car a with mass of 1250kg, is traveling at 30 m/s to the east. car b ...

physics - Car a with a mass of 1250kg is travelling at 30m/s to the east. Car b ...

physics - An amusement park ride consists of a car moving in a vertical circle ...

physics - rotational motion - A small car of mass, m, is release at height, h, ...

Psychics - A freight car is moving freely along a railroad track at 7.0 m/s and ...