10. A baseball player with mass m = 79 kg, sliding into second base, is retarded by a frictional force of magnitude 470 N. What is the coefficient of kinetic friction between the player and the ground?
Q: A 58.2-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic…
A: Solution:-Given that(1) m=58.2 kgμs=0.764μk=0.293
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A: Given: Mass of crates (m) = 4.32 kg Angle of inclination (θ)= 37.0 coefficient of static friction…
Q: 47. To meet a U.S. Postal Service requirement, employees' foot wear must have a coefficient of…
A: Given values:Minimum coefficient of static friction of footwear, Coefficient of static friction of…
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Q: b) A girl exerts a 36-N horizontal force as she pulls a 52-N sled across a cement sidewalk at…
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Q: You are pulling a 100-kg crate along the floor. The coefficient of static friction between the crate…
A: Solution:-Given thatmass of crate (m)=100 kgcoefficient of static friction (μs)=0.55coefficient of…
Q: A baseball player with mass m = 79 kg, sliding into second base, is retarded by a frictional force…
A: Given,
Q: Siri is exerting a 36-N horizontal force as she pulls a 52-N sled across a cement sidewalk at a…
A: Force Applied = F = 36 N Weight W = Normal force N = 52 N Coefficient of kinetic friction = μk = ?
Q: A car (m= 1900 kg) is parked on a road that rises 12° above the horizontal. What are the magnitudes…
A: Given value--- Mass = 1900 kg. Angle = 12 degree We have to find--- Normal force? Static friction…
Q: A (10 kg) block sits on top of an plane inclined by (32 degrees) to the horizontal. There is a…
A: M = 10 kg Φ = 32 ⁰ μ = 0.1 H = 4 m sinΦ = H/d => d = H/SinΦ => d = 4/Sin(32) = 4/0.529…
Q: A stationary 10kg object is sitting on the ground. The coefficient of static friction between the…
A: Given: Mass of an object (m) = 10.0 kg. Coefficient of static friction μs=0.8 Coefficient of kinetic…
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A: We need to find out the magnitude of the maximum acceleration the man can pull the boxes up the ramp…
Q: The coefficient of friction between a 33kg exercise mat and the gym floor are us = 0.41 and uk =…
A: Givenμs =0.41μk =0.36m =33 kg
Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 7.00 kg a distance x = 15.0 m…
A: Given: Applied force Fp=15.0 N. Mass of the block m=7.0 kg. Distance traveled by block x=15.0 m. The…
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Q: 3. A block slides down a smooth 30° inclined plane in a time t seconds. If the plane were rough the…
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Q: A student applies a constant force of 200 N directed 30 degrees above the horizontal and thereby…
A: Given Information:- Applied force is F=200 N Angle between the force and the horizontal θ=30° Weight…
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A: Frictional force can be expressed as fs=μsN
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A: Given data: Mass (m) = 8.5 kg Angle with ceiling (θ) = 85° Required: The tension in one of the…
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A: Given m = 75 kg Weight of the person w = mg = 75 × 9.8 N = 735 N
Q: A car is traveling at 50 mi/h on a straight horizontal highway. TI on the brakes to stop the car. a)…
A: initial velocity velocity of the car, V1 = 50mi/h =50 * 1 / 2.237 m/s = 22.35 m/s final velocity…
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Q: while looking for a set of new tires for your car, you find an advertisement that offers two brands…
A: Given : brand x and brand y, at the same price. Brand x has a coefficient of friction on dry…
Q: What is the tension (in N) in the rope?
A: The tension in the rope is 7.84 N.
Q: Suppose you have a 150-kg wooden crate resting on a wood floor. The coefficients of static and…
A: the force on the wooden crate so as it is not moving is
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A: Given value--- coefficient of kinetic friction = 0.800 . initial velocity = 25.5 m/s. final…
Q: 7. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 7.5 kg…
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Q: Newtons Third Law: A 2.100×103 kg car is parked on a steep hill inclined at 23.0o. What is the…
A: Mass (m) = 2.100×103 kg μs = 0.900μk = 0.400
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Q: A 80 N force is needed to slide 51.0 kg box across a flat surface at constant velocity. How does…
A: Here, the figure shows F needed to slide a box of mass m and acceleration a with kinetic friction as…
Q: 3. (a) A 1700 kg car is parked on a road that rises 18° above the horizontal. What are the…
A: I hope this can help you.
Q: 7. A car is right on the verge of sliding as it speeds around a level circular track. The radius of…
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Q: An object of mass 50kg is pushed in the +x direction with a force of 40N flat along a horizontal…
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- F(t) Force_Crate Known values: Mass of Block 68 kg TT Hs μk 0 0.63 0.53 26° Problem Statement: A crate is initially at rest on a sloped surface, when a force is applied: F(t) where t is in seconds. Answers: When t=44.47 seconds, the crate has not yet started moving. Find the magnitude of the friction force at that time: 317.771 N The direction of the friction force at that time is: down the slope Find the time required for the crate to start moving: Find the crate's speed when t=174.9 s: 9.485 m/s Be sure to include units with your answers. 169.756 S 240+0.2 N,While loading furniture into a truck, you push a 1.56 kg chair up a 14.7 degree ramp, with a horizontal force of 12.1 N. How long does it take to reach a speed of 4 m/s, starting from rest? The coefficient of kinetic friction chair - ramp is 0.345.The coefficient of static friction between Teflon and scrambled eggs is about 0.029. What is the smallest angle from the horizontal that will cause the eggs to slide across the bottom of a Teflon-coated skillet?
- A taut string connects a crate with mass ?1=5.00 kgM1=5.00 kg to a crate with mass ?2=12.0 kg.M2=12.0 kg. The coefficient of static friction ?s,1μs,1 between the smaller crate and the floor is 0.567;0.567; the coefficient of static friction ?s,2μs,2 between the larger crate and the floor is 0.443.0.443. What is the minimum magnitude of force ?minFmin required to start the crates in motion?You want to park on a very steep street in San Francisco, which has an angle of about 30 degrees. The coefficient of static friction between hard rubber and normal street pavement is about 0.90. On how steep a hill (maximum angle) can you leave a car parked? Can you safely park on the steep street? Draw a FBD of the car.– 3. A 64.3 kg skydiver jumps out of an airplane with a parachute. She decides not to pull the rip cord until she reaches terminal velocity. If the resistive force proportionality constant is 2.35 kg/s, what is the magnitude of the velocity when she decides to pull the cord? (Assume the drag force is proportional to the speed.) - a. 16.4 m/s b. 268 m/s c. 151 m/s d. 9.80 m/s e. 27.4 m/s
- Problem 1: While training on the planet Dagobah, Luke Skywalker is asked by Yoda to hold a block with a mass of 6.80kg against a vertical wall using only the Force. Luke applies the Force with a magnitude of 115.0N at an angle of 52.0° with respect to the horizontal. Luke discovers that if the Force increases any more, the block begins to slide up the wall. What is the coefficient of static friction between the block and the wall? Assume that gravity on Dagobah is the same as gravity on Earth.You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 263 N in the negative x direction to try and move the 53 kg refrigerator. The coefficient of static friction is 0.70. (a) How much static frictional force does the floor exert on the refrigerator? Give both magnitude (in N) and direction. magnitude N direction -Select--- ✓ (b) What maximum force (in N) do you need to apply before the refrigerator starts to move? NWhat is the cofficient of static friction between the pavement and the car tires?
- MY NOTES ASK YOUR TEACHER A Mercedes-Benz 300SL (m = 1750 kg) is parked on a road that rises 20° above the horizontal. (a) What is the magnitude of the normal force? X N 16.1 8 9. (b) What is the static frictional force that the ground exerts on the tires? 5.86 Additional Materials 6. D eBook Submit Answer ?? TOO 2,197 MacBook Air %23 3 4 2 E RO H. D F 3. 2.10. To meet a U.S. Postal Service requirement, employees' footwear must have a coefficient of static friction of 0.5 or more on a specified tile surface. A typical athletic shoe has a coefficient of static friction of 0.800. In an emergency, what is the minimum time interval in which a person starting from rest can move 3.00 m on the tile surface if she is wearing (a) footwear meeting the Postal Service minimum and (b) a typical athletic shoe? Answers: a) 1.11 s b) 0.875 sA physics major is cooking breakfast when he notices that the frictional force between the steel spatula and the Oiled Steel frying pan is only 0.500 N. Knowing the coefficient of kinetic friction between the two materials (0.03), he quickly calculates the normal force. What is it?........N