A 10.0 kg box is pushed along a surface (µ = 0.400) with a force of 300 N. Draw a Free Body Diagram of the box and determine the acceleration of the box. Take a picture of your solution and attach or embed it.
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- Check Your Understanding A block of mass 1.0 kg rests on a horizontal surface. The frictional coefficients for the block and surface are s=0.50and k=0.40 . (a) What is the minimum horizontal force required to move the block? (b) What is the block’s acceleration when this force is applied?World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15m/s^2 a) How much horizontal force F must a sprinter of mass 64 kg exert on the starting blocks to produce this acceleration?World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15 m/s2. Which body exerts the force that propels the sprinter: the blocks or the sprinter herself?
- If the rocket sled starts with onlyone rocket burning, what is the magnitude of its acceleration?Assume that the mass of the system is 2100 kg, the thrust Tis 2.4×104 N, and the force of friction opposing the motionis known to be 650 N. (b) Why is the acceleration not onefourth of what it is with all rockets burning?A block of mass ?=2.80 kg is being pulled by a force ?⃗ of magnitude 12.0 N on a horizontal, smooth (frictionless) surface. The force makes an angle ?=30.0° abovethe horizontal, as shown in the figure. a)Find the magnitude of the normal force exerted by the surface on block. b)Find the acceleration of the box. c)If the box starts from rest, what would be its speed after it travels 2.00 m?A 8000 kg engine pulls a train of 5 wagons, each of 2000 kg, along a horizontal track. If the engine exerts a force of 40000 N and the track offers a friction force of 5000 N, then calculate: (a) the net accelerating force (b) the acceleration of the train
- i’m having trouble visualizing this one and thus can’t figure out a free body diagram to go along with it. do i even need a free body diagram?Can you help explain this problem to me and draw a free body diagram? I will rate thnx!A foolish mover has a10kg box resting on a well-waxed and frictionless floor in a long hallway. The moverdecides to push the box down the hallway, but she does it by applying a force of50N directed60degreesbelow the positive x-axis. (a) Find the acceleration of the box( b) At what angle should she push the box to maximize its acceleration?
- The human head can be considered as a3.3-kg cranium protecting a 1.5-kg brain, with a small amount ofcerebrospinal fluid that allows the brain to move a little bit insidethe cranium. Suppose a cranium at rest is subjected to a force of2800 N for 6.5 ms in the forward direction. (a) What is the finalspeed of the cranium? (b) The back of the cranium then collideswith the back of the brain, which is still at rest, and the two movetogether. What is their final speed? (c) The cranium now hits anexternal object and suddenly comes to rest, but the brain continues to move forward. If the front of the brain interacts with thefront of the cranium over a period of 15 ms before coming to rest,what average force is exerted on the brain by the cranium?A child of mass m rides on a toboggan down a slick, ice-covered hillinclined at an angle u with respect to the horizontal. (a) What isthe acceleration of the child? (b) What is the normal force exertedon the child by the toboggan?a block of mass m 5.00 kg ispulled along a horizontal frictionless floor by a cordthat exerts a force of magnitude F = 12.0 N at anangle u = 25.0. (a) What is the magnitude of theblock’s acceleration? (b) The force magnitude F isslowly increased. What is its value just before theblock is lifted (completely) off the floor? (c) What isthe magnitude of the block’s acceleration just before it is lifted(completely) off the floor?