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Course: Class 11 Physics (India) - Hindi > Unit 4

Lesson 4: Gravitational potential energy and conservative forces (Hindi)
Science
Class 11 Physics (India) - Hindi
Work, energy and power (Hindi)
Gravitational potential energy and conservative forces (Hindi)
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Finding change in gravitational potential energy

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Problem

A 1.0kg toy car is released at the top of a frictionless track on the left and rolls off of the track from its right side ramp. The car starts at a height of 0.80m, goes through a 0.50m diameter loop, and exits the ramp at a height of 0.25m.
A toy car track starts with a tall ramp to the left of height 0.80 m, has a vertical loop in the middle of 0.50 diameter, and a small ramp to the right of height 0.25 m. A car is at the top of the left ramp. Point A is at the bottom of the loop. Point B is at the top of the right ramp.
What is the change in the car’s gravitational potential energy from A to B?
Round answer to two significant digits.
  • Your answer should be
  • an exact decimal, like 0.75
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