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Q: 2. When you weigh yourself on solid ground, your weight is 790 N. You stand on a bathroom scale in…
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Q: 4. A 1000-N force is applied onto a block with a mass of 150-kg as shown below. The block starts…
A: Apploed force (F) = 1000 N d = 5 m θ = 30oμk = 0.15mass (m) = 150 kg
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A cart of unknown mass is placed on a track. The cart is connected to a hanging weight of unknown mass via a string over a pulley and the hanging weight is allowed to drop to the floor. The following graph is collected.
which of the following can I learn from the slope of this graph?
a. mass of the hanging weight
b. work done on the cart by the hanging mass
c. velocity of the cart
d. mass of the cart
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- QUESTION 7 From the diagram below, what is the speed of the block when it reaches point A at the lowest point on the surface? 2.00-kg block with an initial velocity of 5.00 m/s down the track Frictionless track В 9.00 m 5.00 m A a. 11.2 m/s b. 9.70 m/s C. 14.2 m/s d. 15.7 m/s е. 12.7 m/sA 110 Kg package is to be pushed down at constant speed on an inclined plane 4 meters long from the back of a truc meters above the ground. The coefficient of kinetic friction is equal to 0.45. A force (Fa) parallel to the inclined plane should be applied to hold back the box so that it is lowered at a constant speed. A. Draw the complete Free-Body Diagram B. Work done by Fa on the box C. Work done by friction on theThe attatched graph is a force over distance graph for a pop-up spring toy. Use the graph to answer the following questions. a. Determine the maximum height the pop-up toy would reach (if it landed perfectly vertical). b. If the spring were to launch the toy horizontally across a felt rug, with a coefficient of kinetic friction μ = 0.35, what would be the velocity of the toy after travelling 0.5 meters beyond its launch point?
- I have no idea how to start this problem how do I do it.Question 10 A 10.0 kg child on a 5.0 kg sled, starting from rest, goes down a frictionless hill with a height of 3.25 m. As soon as it reaches the bottom of the hill the sled hits a gravel patch on level ground with a coefficient of friction of 0.72. How far does the sled travel before coming to a stop? (1017) A) 02.34 m B) 067.71 m C) 00.16 m D) 035.10 m E) 04.51 mIf the velocity of a cart increases, the kinetic energy A. Increases B. Decreases C. Remains the same
- QUESTION 28 You push a 80-kg file cabinet to the right on a frictionless horizontal surface with a force of 175 N from rest, the cabinet moves a distance of 12 m. What is the final speed of the cabinet, in m/s? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A child has two red wagons, with the rear one tied to the front by a stretchy rope (a spring). If the child pulls on the front wagon, the ____ increases. a. kinetic energy of the wagons b. potential energy stored in the spring c. both A and B d. not enough informationSuppose a person wishes to lift a large rock with a lever. If the rock has a mass of 250kg and is located 50 cm from the pivot, and the person can put a force of 650N straight down on her end of the lever, what is the minimum distance from the fulcrum she has to be to lift the rock?A. 0.63 m B. 1.24 m C. 1.88 m D. 2.73 m
- 2. The sphere of the figure moves with an initial velocity of 5.00 m/s from a height of 20.0 m. The surface is friction-free. Use AKE + AU = 0 to determine the velocity of the sphere when at a height of 7.0 m 20.0 m 7.0 m 17.0 m Figure 11: A sphere sliding down a friction-free ramp. Reference: M. Soto (2022)A bike rider practices four different types of riding. The bike + rider system always has the same total mass. As the rider’s speed increases, the kinetic energy of the bike + rider systemplease see image