A trailer truck enters a 2 percent uphill grade traveling at 72 km/h and reaches a speed

Question:

A trailer truck enters a 2 percent uphill grade traveling at 72 km/h and reaches a speed of 108 km/h in 300 m. The cab has a mass of 1800 kg and the trailer 5400 kg.

Determine
(a) The average force at the wheels of the cab,
(b) The average force in the coupling between the cab and the trailer.

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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073398242

11th edition

Authors: Ferdinand Beer, E. Russell Johnston Jr., David Mazurek, Phillip Cornwell, Brian Self

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Question Posted: Jun 01, 2017 10:42 AM

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A trailer truck enters a 2 percent uphill grade traveling at 72 km/h and reaches a speed

Question:

108 km/h 72 km/h 2% up grade 300 m

Step by Step Answer:

Initial speed v 1 72 kmh 20 ms Final speed V 2 108 kmh 30 ms Vertic...View the full answer

Vector Mechanics for Engineers Statics and Dynamics

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