Question

apples are shipped in crates that measure 60 inches long 40 inches wide and 32 inches high what is the volume of each crates

Answer 1

Condition:

A boy is pulling a load of 150N with a sling inclined at an angle of 30 to the horizontal. If the tension in the sling is 105N, the force tending to lift the load off the ground is

Solution:

$$F _ {l i f t} = F _ {\perp} - T _ {\perp} = F * \sin 3 0 {}^ {\circ} = (F - T) \sin 3 0 {}^ {\circ}$$

Where $F_{lift}$ is force tending to lift the load off the ground, $F_{\perp}$ is boy's force, $T_{\perp}$ is tension in the sling.

$$F _ {l i f t} = (1 5 0 - 1 0 5) * \frac {1}{2} = 2 2. 5 N$$

Answer: $F_{lift} = 22.5N$.