PROBLEM 3: FORCE AND ACCELERATION The crate has a mass of 80 kg and is being towed by a chain which is always directed at 20 degrees from the horizontal as shown. Determine the crate's acceleration in t-2s if the coefficient of static friction is µ, - 0.4, the coefficient of kinetic friction is uy = 0.3, and the towing force is P = (90t²)N, where Tis in seconds. |20°

PROBLEM 3: FORCE AND ACCELERATION The crate has a mass of 80 kg and is being towed by a chain which is always directed at 20 degrees from the horizontal as shown. Determine the crate's acceleration in t-2s if the coefficient of static friction is µ, - 0.4, the coefficient of kinetic friction is uy = 0.3, and the towing force is P = (90t²)N, where Tis in seconds. |20°

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

PROBLEM 3: FORCE AND ACCELERATION
The crate has a mass of 80 kg and is being towed by a chain which is always directed at 20 degrees from the horizontal as shown. Determine the crate's
acceleration in t=2s if the coefficient of static friction is 4, - 0.4, the coefficient of kinetic friction is uk = 0.3, and the towing force is P = (90t²)N, where Tis in
seconds.
p
20°

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