Q3-A container of mass 200 kg rests on the back of an open truck. If the truckaccelerates at 1.5m/s2, what is the minimum coefficient of static frictionbetween the container and the bed of the truck required to prevent the con-tainer from sliding off the back of the truck?
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A: The static friction force is a self adjusting force.
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- When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 986 N and the drag force has a magnitude of 1049 N. The mass of the sky diver is 101 kg. Take upward to be the positive direction. What is his acceleration, including sign? Type to search 7 Number e Textbook and Media Save for Later 2 +6.24 W Ri 3 E C $ 4 " Units R % 5 m/s^2 T V 6 & 7 7 H * Attempts: 2 of 3 used Submit Answer 8 81°F Partly sunny 0 K 2:41 6/2/2. You are moving the box (m=1Okg) across a rough floor by pushing on it at an angle of 20° below the horizontal with force of magnitude F=100N. What is the coefficient of kinetic friction between the box and the floor if it is moving at constant velocity? Present free-body diagram. 10°With complete solution please asap
- Weight of the box: 14N y-component: -2N x-component: 0 There is a box at rest on a table. What is the magnitude of normal force? What the maximum possible magnitude of the force of static friction?You have 40 kg friend lying on a 60 degree slope who needs your help. You toss them a rope and hold on tight to keep them from falling. If the coefficient of friction between and the slope is 0.3, how hard must you hang on in order to keep your friend from moving?A2 kg box is attached to a 4 kg box on a horizontal surface as shown. A 80 N force acts on it at an angle of 30 degrees with the horizontal as shown in Figure. If the kinetic friction between the objects and the surface is 0.44, calculate the acceleration of the boxes and the tension in the string joining the two are then: 4 30°
- A square loop has a charge density λ = |x| at y = ±a and [x]Q1- In the arrangement shown in Fig ,what is the minimum coefficient of friction to prevent the 8.0kg mass from sliding?Q4/ In the figure below, a 20 Kg box is at rest on the ground. The static friction coefficient in between the ground and the box is 0.7, while the kinetic friction coefficient is 0.6. Find the friction force of P (horizontal force) is (a) 20 N, (b) 30 N, (c) 120 N, and (d) 180 N).