A 15 kg box is at rest on a horizontal rough surface
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A 15 kg box is at rest on a horizontal rough surface. A rope is attached to the box and pulled at an angle of 30° above the horizontal. If the coefficient of static friction between the box and the surface is 0.40, determine the minimum tension in the rope required to start the box moving. Express your answer to two significant figures.