A cart starting from rest at a height of 1.00 m above a tabletop can roll down two different ramps—one that goes in a straight line from A to B at a 15º incline, and one that descends at a 30º incline from A and is then level until B. Calculate the time it takes for the car to get from A to B along each ramp.

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter6: Motion In Two Dimensions
Section: Chapter Questions
Problem 84A
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A cart starting from rest at a height of 1.00 m above a tabletop can roll down two different ramps—one that goes in a straight line from A to B at a 15º incline, and one that descends at a 30º incline from A and is then level until B. Calculate the time it takes for the car to get from A to B along each ramp.

 

The answers are 1.74 s and 1.35 s. I need help on some of the steps 

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