F, pull 5. A 15.0 kg box is being pulled along level ground by a 75.0 N force that is directed at an angle of 20° above the horizontal. The coefficient of kinetic friction is 0.330. What is the acceleration of 20° the box?
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- Some object with mass 0.1 Kg slides along a flat surface. Friction exists. Horizontal force of 1N is acted on the object, and consequently, the object has constant acceleration of 2.65 m/s^21. What is the coefficient of kinetic friction? 2. Say the object is pushed onto a slope with an inclination of 30 degrees. What will acceleration be, if the coefficient uk between the object and slope is the same?A box rests on a horizontal surface. You apply a force on the box of F = 100 N at an angle, θ, below the horizontal and it slides at a constant velocity. The friction force that acts on the box is?What is the force required to accelerate a 50.0 kg box across a frictionless surface at 0.50m/s2?
- What force necessary to accelerate a 3000 Ibs railway electric car at the rate of 1.25 ft/sec2, if the force required to overcome the frictional resistance is 400 Ibs. W = 3000 Ibs a P F 400 Ibs O 1564.596 Ibs O 1267.382 Ibs O 1653.397 Ibs O 1427.937 IbsA 140 kg wooden crate resting on a wood floor. The coefficients of stattic and kinetic friction here are μs =0.5 and μk=0.3. WHat maximum force, in newtons, can you exert horizontally on the crate without moving it? If you continue to extert this force once the crate starts to slip, what will its accelertation be in m/s2?The coefficient of kinetic friction between this 29 kg box and the floor is 0.25 and the pushing force is 161 N at an angle of 19 degrees below the horizontal. What is the acceleration of the box in m/s2?
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- We are performing an experiment to calculate drag coefficient that involved dropping a beach ball off of an indoor balcony and recording the time it takes to hit the ground. Would the drag coefficient be positive or negative? My group and I are stuck wondering if acceleration due to gravity should be negative or positive when calculating for D in the following equation. And also we dont know if velocity in the equation should be negative since it is travelling in the negative y direction.b. What wils in a verticoL Jwun this maximum tension occur? 3. A 0.so kg football is thrown from a height of J-8m with an Lattial velo of 15 m/s [ 34°4] (34° above the hortzontal axis). Assuming that there kund ar resistance and that the bal Jands on the ground, how far will the ban travel horizontally?A ball is thrown up from the ground with some initial velocity at an angle of 45degree to the horizontal. If it travels 30m horizontally before landing again. a) Find initial launch velocity? b) Findthe highest point it reaches? A box is at rest on a table. The book has a mass of 6 kg. You pull straight upwards on the box by a rope attached to it with a force of 10 N and the box remains at rest. What is the normal force on the box due to the table?