A skier of mass M Kg starts from rest down the hill inclined at angle 0', He skies distance 'D' meter down the hill and then coasts for X' meter along level snow until he stops. Find the coefficient of kinetic friction between the skier and the spow
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A: let the frictional force be fN so F-f=ma or 310-60*2=f I.e f=190 N so 60*9.8*k=190 Therefore…
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A: To obtain the compression of the spring, we must use the concept of energy balance as given below-…
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A: here I assumed acceleration due to gravity (g) =9.81 m/s^2.for solution refer below images.
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A: Given: Mass of the block 1 is 87.3 kg. Coefficient of friction is 0.2. The system is shown below:
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- The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the smallest force P and the corresponding angle that would cause impending sliding of the block. The angle of static friction between the block and the ground is s.Find the angle of banking for a highway curve of 300-ftradius designed to accommodate cars travelling at speed ofup to 120 mph, if the coefficient of friction between thetires and the road is 0.60. What is theminimum speed in miles per hour (mph) at which a carcan round the curve without slipping?An aeroplane required for take off speed of 80 km/h, the run onthe ground being 100m. The mass of the aeroplane is 10000 kgand coefficient of friction between the plane and ground is 0.2.Assume that the plane accelerates uniformly during the take off.What is the maximum force required by the engine of the plane fortake off.
- 3ft 30° 4 ft a Small aate weighing 2e6 contains a ball weighing 3 es. Rey are released fom rest at 'The which has friction of 0.3 with The epate, at the bottom of the incline. the crate is stopped by continues, mouing out of the crate, The ball Smo0thly impacts weigh ing 4 eb, which is suppated by Apring of const ant 50 lb/ft. The coefficient of rest itution for This collision 0.6. The ball bounces away. top of the incline, a coeffizi ent of Kihe tre bumper, but the ball a platter a a is Frnd : The maximum compretsion of The speing.A child goes down a playground slide that is inclined at an angle of 24.5°below the horizontal. Find the acceleration of the child given that the coefficient of kinetic friction between the child and the slide is 0.3751. A force of 69N is needed to start an 6.9kg box moving across a horizontal surface. Calculate the coefficient of static friction. If the box continues to move with an acceleration of 1.69 m/s2. What is the coefficient of kinetic friction? 2. A box of 45ON is lying in an inclined plane with angle of 35 degrees. If the applied load to move the box is 269N. Determine the net Ff and the acceleration of the box if the coefficient of static friction is 0.35 and the coefficient of kinetic friction is 0.28.
- Mary and her sister are playing with a cardboard box on the neighborhood hill. Mary climbs into the box, the total mass of the box with Mary in it is 115 kg. The box starts at rest at the beginning of the incline. The hill is at an incline of 28 degrees with respect to the horizontal.The static and kinectic friction between the box and hill is 0.4 and 0.2 respectively. Assume the box is sliding downhill. a. What is the magnitude of the acceleration of the box? (same as Problem 3b)b. If the hill is 5m tall, what is the Mary's speed when she reaches the bottom?c. At the bottom of the hill, the ground becomes level, but the coefficients offriction do not change. How far will Mary slide before she comes to a stop?pls send me answer of this question all the parts pls and i will rate you sure, pls solve a,b,c and d and also a and b A 200-kg dragster (racing car) exerts a constant force of 4000 N during a race. The coefficient of kinetic friction between the tires and the pavement is .15. If the drag strip is 1000 m long, determine:a. The net force on the dragster. b. The acceleration of the dragster. c. The time it takes for the dragster to finish the race.d. The dragster's velocity at the end of the race.The dragster now needs to slow down, so it opens a parachute. The force of air drag is 3500 N. The driver also locks the brakes of the dragster, and the coefficient of kinetic friction becomes .75. Determine:a. How long it will take to stop the dragster.b. The distance the dragster travels while stopping.A uniform ladder of length 12 mand mass 30 kg rests with one ed on rough horizontal ground and the other end against a smooth vertical wall. The ladder is indined 65°. The coefficient of friction, H, between the ladder and the ground is 0.35. A woman of mass 65 kg is slowly dimbing up the ladder. She wants to know how far up the ladder she can dimb safely. Drawa diagramshowing all the force adting on the ladder when the woman is x metres fromthe foot of the ladder. (a) (b) Find the reaction of the ground on the ladder. (c) Show that the reaction of the wall on the ladder is less than 33.25g By taking moments about the base of the ladder, find how far up th ladder she an dimb safely. (d)
- 200lp box is at rest in the beginning on horizontal surface and force T=100lb and P applied shown. coefficient of static and kinetic friction is us= 0.3 and uk=0.2. find acceleration of block if p=100lb and p=250lbQ3: As shown in figure, find that at what distance body A will attain a velocity of 3 m/s from A 2000 N when starts rest. Assume coefficient of friction as 0.2 for block and and pulleys frictionless and weightless. surface are 3) DOM www N 00A Center Raft A person is standing at one end of a uniform raft of length L that is floating motionless on water, as shown above. The center of mass of the person-raft system is a distance d'from the center of the raft. The person then walks to the other end of the raft. If friction between the raft and the water is negligible, how far does the raft nove relative to the water? L/2 B L C d/2 Ⓡ O d Center of Mass of System 2d in