Based on the free-body diagram as shown below, what is the net force along the x-component, in Newtons? Your answer needs to have 1 significant figure, include the negative sign in your answer if needed. (No unit is needed in your answer, it is already given in the question statement.) 3.0 N 2.0 N 4.0 N 1.0 N ▼2.0 N
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- Please draw an FBD for the following statements 1. A textbook sits at rest atop a table. What would it's free body diagram look like? 2. A massless spring scale holds a hanging mass in place like shown. What would a fbd of the spring scale look like? (Images is below. It's the first one) 3. a stack of textbooks sit at rest atop table. What would the fbd of the book on the the bottom book like? 4. A snowboarder with a frictionless snowboard is travelling down a hole. What would their fbd look like? ( image is below. It will be the second one)The block shown in figure #1 above has a mass of 4.30 kg. The applied force (? ⃑ ) has a magnitude of 31.2 N and is 32.0° above the horizontal, frictionless surface the block in on. a. What is the force of gravity (magnitude and direction) that acts on the block? b. What is the y-component of the block’s acceleration?With what force in the rightwards direction, Fx, should the mother push? Note that if you think the force exerted by the mother should be toward the left, your final answer Fx should be negative. Express your answer in terms of W, Lend, w, L2, L3, and h.
- At one point during a flight, a 4kg model rocket burning fuel, generating a 140N thrust and experiencing a 60N drag. How many forces are acting on the rocket? What is the magnitude of the net force on the rocket? What is the magnitude of her acceleration? Describe the rocket's speed:The block shown in figure #1 above has a mass of 4.30 kg. The applied force (? ⃑ ) has a magnitude of 31.2 N and is 32.0° above the horizontal, frictionless surface the block in on. a. What is the normal force (magnitude and direction) that acts on the block? b. What is the acceleration (magnitude and direction) that is experienced by the block?The figure above shows free-body diagrams for the cart mc and the hanging mass mh in terms of the gravitational force mg, tension T, normal force N, and frictional force Ff=μkN. Q1: Based on the mc free-body diagram, type an expression for the horizontal acceleration of the cart. Q2: Based on the mh free-body diagram, type an expression for the vertical acceleration of the hanging mass. Q3: As shown in the first figure, the horizontal acceleration of the cart to the right must be equal to the downward vertical acceleration of the hanging mass if the string does not stretch. Given that both the cart and the hanging mass have the same acceleration, eliminate the tension force (T) from your answers to Q1 and Q2 to find an expression for the acceleration only in terms of mh, mc, μk, and g.
- A block with mass m = 5 kg is pushed with a force of = 30 N. Please answer F1 the following: A. Draw a body diagram ( like I did in lecture) representing all forces acting on the block. B. If the coefficient of static friction is = 0.5, does the block move? ( μscompare with )FsF1 C. The block starts moving, if the coefficient of static friction is =0.2 find .μkFk D. Find the acceleration. E. After t = 2 s how far did the block move? (the initial position and initial Xi velocity are both zero)Vi F. What is the velocity after t = 3 s ?Three stacked blocks are placed in an elevator as shown: Assume the stack of blocks is in contact with the floor of the elevator. If m = 11.9 kg and the elevator is accelerating upward at 1.9 m/s2, what is the normal force exerted on the 5m block by the 8m block? Express your answer in N, to at least one digit after the decimal point.World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has a magnitude of 15 m/s2. How much horizontal force must a 55-kg sprinter exert on the starting blocks during a start to produce this acceleration? Which body exerts the force that propels the sprinter: the blocks or the sprinter herself?
- At a construction site, a pallet of bricks is to be suspended by attaching a rope to it and connecting the other end to a couple of heavy crates on the roof of a building, as shown in (Figure 1). The rope pulls horizontally on the lower crate, and the coefficient of static friction between the lower crate and the roof is 0.509. What is the weight of the heaviest pallet of bricks that can be supported this way? (Hint: Start by drawing appropriate free-body diagrams.) (Express your answer in pounds.) What is the friction force on the upper crate under the conditions given in Part 1? (Express your answer in pounds.)Three blocks, light connecting ropes, and a light frictionless pulley comprise a system, as shown in the figure. An external force of magnitude P is applied downward on block A, causing block A to accelerate downward at a constant 2.5 m/s2. The tension in the rope connecting block B and block C is equal to 60 N. What is the magnitude of the force P? What is the mass of block C? Please include detailed answers with net force equations.A loaded elevator with very worn cables has a total mass of 2200 [kg], and the cables can withstand a maximum tension of 28,000 [N]. Draw the free-body force diagram for the elevator. In terms of the forces on your diagram, what is the net force on the elevator? Apply Newton’s second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break. What would be the answer to part (a) if the elevator were on the moon, where g = 1.62 [m/s2]?