A ski slides down a 25° slope for 25 m before taking off from a negligibly short horizontal ramp. If the jumper’s take-off speed is15 m/s, what is the coefficient of kinetic friction between skis and slope?

Q: A car is travelling at a constant +15m/s prior to colliding with a wall for 0.25s. After the…

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Q: 500 m Lake level 30° You are skiing downhill in Lake Tahoe Ski Resort. You start from the height 500…

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Q: A 2.50-kg fireworks shell is fired straight up from a mortar and reaches a height of 110 m. (a)…

A: Given values -  Mass of fireworks= m = 2.5 kg  Height = h=110 m Length of tube=L = 0.450 m

Q: A skydiver (46 kg) is falling at 27 m/s when she pulls her parachute cord. The parachute slows her…

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Q: 6. A loaded 425 kg toboggan is traveling on smooth horizontal snow at 5.40 m/s when it suddenly…

A: (a) Initial and final velocities if the toboggan is:

Q: A 6.5 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a…

A: M=6.5kg, T=14N , angle is 36°, u= 0.07

Q: Papa Smurf (whose mass is 1kg) is sliding at 1.0 m/s over an icy pond that has no friction.  A force…

A: From Newton’s 2nd law, the expression of the force is given as, Here, m and a represent the mass…

Q: Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

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Q: A rope hangs down from a high tree branch at the edge of a river. Josh, who has mass 65 kg, trots at…

A: Given values, mass of josh, m =65 Kg Length of rope, L =7.2 m velocity of josh, v =2.5 m/s

Q: A baseball is thrown upward from a height of 3 meters above Earth’s surface with an initial velocity…

A: Part (A ) By equation of motion  V= U +at Here, V = velocity at time t    U = Initial velocity   a =…

Q: Mark swings a bucket filled with 2.5 kg of water over his head. The length of his arm is 0.52…

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Q: A box is hanging at rest from the ceiling by two ropes. The rope on the left (Rope 1) forms a…

A: Recall  For the equilibrium of the box∑Fx=0∑Fy=0

Q: A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of…

A: The free body diagram of the system is given as:…

Q: A 14.5 g bullet is moving to the right with speed 300 m/s when it hits a target and travels an…

A: The acceleration of the bullet is

Q: 16b. If a penguin, traveling at 14 m/s, hits a level patch of sandy beach with a coefficient of…

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Q: Q4) If the motor exerts a constant force of 300 N on the cable, determine the speed of the 20-kg…

A: Given: Mass of the crate = 20 Kg Distance travelled by the crate = 10 m Coefficient of the kinetic…

Q: A weightlifter pulls a 200 kg chunk of stone with constant velocity of 0.75 m/s on a horizontal…

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Q: (d) When a = 4 m/s (towards the ground) w m(g-a) = 50 (10 - 4) = 500- 200 = 300 N oun %3D The rope…

A: As per the guidelines we are supposed to answer only first question. Please repost other question(s)…

Q: A 3000-kg spaceship is moving away from a space station at a constant speed of 3 m/s. The astronaut…

A: M = 3000kg u = 3m/s

Q: A 200-N sled of slides down a frictionless hillside that rises at 37° above the h magnitude of the…

A: We know that we have given The sled has a weight of W = 200 N and it slides down a frictionless…

Q: 4) Cindy wants to move a 20 kg chair to a different spot in her living room. She puts slippery…

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Q: Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the…

A: When the dolphin is moving in water, it is given that,

Q: A 41 kg skier skis directly down a frictionless slope angled at 12° to the horizontal. Choose the…

A: Given : mass of skier, m = 41 kg              angle of inclination of hill, θ = 12°

Q: (b) Evaluate the support reactions forces of the loading diagram shown in Figure Q5(b) 60KN 40KN D…

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Q: A skydiver ejects from his aircraft and falls 80 m from the ground without friction. When he opens…

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Q: A student is pushing a block that is stationary on a horizontal surface. When is the friction at…

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Q: A box (400 kg) sits inside the trailer of a semitruck traveling at a speed of 25 m/s (~ 55 mph).…

A: As per the guide lines first three sub parts are answered. Kindly post the remaining question as a…

Q: 15 m 53° 100 m 40 m

A: Given,  Ramp was inclined at an angle of θ = 53° width of the river d = 40 m the far bank was 15.0 m…

Q: At the end of a run Sam (116kg) crashes into a 85kg blood-rider who was running in the wrong…

A: m1 (mass of sam) = 116 kg U1 (Initial speed of sam) = 4.2 m/s m2 (mass of blood rider) = 85 kg U2…

Q: #55

A: (55)   (a)   As the brake reaction time is zero, the truck will stop before the hole when the driver…

Q: 17. Graph-it-all analysis. The following are a y-t plot, two v-t plots, and an a-t plot. Which of…

A: Its a concept lf acceleration. We know during free fall the acceleration remains constant i.e…

Q: A 2.50-kg fireworks shell is fired straight up from a mortar and reaches a height of 110.0 m. (a)…

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Q: A roller-coaster vehicle has a mass of 565 kg when fully loaded with passengers (see figure). 10 m…

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Q: Q2. A fisherman in a boat catches a great white shark with a harpoon. The shark struggles for a…

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Q: 9. A train pulls out of a station along track a straight horizontal with five identical freight cars…

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Q: A woman at an airport is rolling her suitcase (mass = 20 kg) at an initial velocity of 1 m/s by…

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Q: A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 30∘ angle. The block's…

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Q: 2. A block with a mass of m = 1.5 kg, being pushed across a horizontal glass surface, µg = 0.4. What…

A: Solution: (2) Calculate the normal reaction on the block. N=mg Here, N is the normal reaction, m is…

Q: force 450 N pushes on a 30.7 kg box at an angle of 50° from the horizontal. Starting from rest , the…

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Q: A bus driver is driving at 25 mph and has to make an emergency stop by slamming on the bus's brakes.…

A: The stopping distance is given by d=v22μg

Q: A 3500 g fireworks shell is ffired straight up from a mortar and reaches a height of 210.0 m. (a)…

A: Given that, The mass of fireworks, m = 3500 g = 3.5 kg It reaches the height of 210 m (a) Let v is…

Q: A hockey puck leaves a player's stick with a speed of 9.9 m/sm/s and slides 36.0 mm before coming to…

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Q: 5. A light plane of mass 1200 kg makes an emergency landing on a short runway. With its engine off,…

A: Given data: A light plane of mass, mp=1200 kg  Speed, vp,i=35 ms Mass of the sandbag, ms=130 kg The…