Concept explainers
A 3200-lb forklift truck is used to lift a 1700-lb crate. Determine the reaction at each of the two (a) front wheels A, (b) rear wheels B.
(a)
The reaction at each of the two front wheels A.
Answer to Problem 4.142RP
The reaction at each of the two front wheels A is
Explanation of Solution
The free-body diagram is shown in figure 1.
The weight of the truck is
The reaction at
Write the expression for the moment at
Here,
Under equilibrium, the moment about
Here,
Calculation:
Substitute
Therefore, the reaction on each front wheel is
(b)
The reaction at each of the two rear wheels.
Answer to Problem 4.142RP
The reaction at each of the rear wheels is
Explanation of Solution
Refer to figure 1.
Let
The reaction at
Here,
Write the expression for the net force.
Here,
Put the above equation in equation (III).
Calculation:
Substitute
Therefore, the reaction on each rear wheel is
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Chapter 4 Solutions
CE 99 STATICS-W/ACCESS (LL) >IP<
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