weighing 82 kg ( including equipment ) falls vertically downward from an altitude of 1500 meters, and opens the parachute after 10 sec of free fall. Assume that the force of air resistance is proportional to velocity. The air drag coefficient before opening the chute is k1 = 1.65 kg/sec , when the parachute is closed and after opening the chute k2 = 26.4 kg/sec.Take g = 9.8 m/s 2 . (a) Find the speed of the sky diver when the parachute opens ? (b) Find the distance fallen before the parac

Q: A sled with mass of 10.3 kg is sitting at the top of a hill, which is inclined at an angle of 29…

A: Here a sled is at the top the hill. The hill is inclined with 29° to horizontal. Again the kinetic…

Q: You are designing a high-speed elevator for a new skyscraper. The elevator will have a mass limit of…

A:

Q: After rounding second base, a baseball player with a mass of 77 kg slides into third base. The…

A:

Q: A mover has to move a heavy sofa of mass 100 kg to the second floor of the house. He uses a rope to…

A:

Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

A: Newton's second law of motion states that the acceleration of an object is directly proportional to…

Q: A husky is pulling a sled loaded with cargo (total mass m = 34kg) along some snow, which has…

A:

Q: It was a snow day, so Eric and some friends went sledding. He boarded his 60-inch sled and descended…

A:

Q: A 547g squirrel with a frontal surface area of 0.0145m2 falls to the ground from a 5.3m tree. Assume…

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Q: At 560 metric tons, the Airbus A-380 is the world’s largest commercialairliner. What’s the upward…

A:

Q: A 5 kg box is at rest on a ramp inclined at an angle of 15°. The coefficients of static and kinetic…

A:

Q: You are pulling your luggage in an air port for an international flight. You know not to pack too…

A:

Q: A car is traveling at 46.0 mi/h on a horizontal highway. (a) If the coefficient of static friction…

A: Given Data: Initial speed of the car (u) = 47 mi/h = 21.0 m/s. Final speed of the car (v) = 0 m/s.…

Q: A mover has to move a heavy sofa of mass 101 kg to the second floor of the house. He uses a rope to…

A:

Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

A: Given: Drag coefficient b = 0.330 kg/mSpeed v = 0.000137 m/sNow, the drag force is fd = -bv2As it is…

Q: A penguin slides at a constant velocity of 2.54 m/s down an icy incline. The incline slopes above…

A:

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: A 62.9-kg skydiver reaches a terminal speed of 57.0 m/s with her parachute undeployed. Suppose the…

A:

Q: You walk into an elevator, step onto a scale, and push the "down" button to go directly from the…

A: Given, Normal weight of the person W = 635 N initial acceleration of elevator a = 2.40 m/s2

Q: An elevator, moving upward, decreases in speed from 8.41 m/s to 1.70 m/s in 2.02 s. Assuming…

A:

Q: Zola (the wonder dog) is told to sit and stay on a bathroom scale that reads 150 newtons with her on…

A: Given The Weight of the Zola is W = 150 N. The acceleration at which Zola moves in air is a = 2…

Q: he is pulled upward at a constant vel Question 14. To hoist himself into a tree, a 72.0-kg man ties…

A: Tension, T = 367 NMass, m = 72 kgAcceleration, a = ?

Q: You are pulling your luggage in an air port for an international flight. You know not to pack too…

A: mass of luggage (m) = 21.4 kg force exerted (F) = 52 N angle = 25 degree above the horizontal…

Q: A 52.4-kg skydiver reaches a terminal speed of 63.3 m/s with her parachute undeployed. Suppose the…

A: Given : mass of skydiver, m = 52.4 kg Terminal speed, v = 63.3 m/s2  Fdrag = kv2  Acceleration due…

Q: Component Method: With your calculator, determine the x and y components of F1 and F2. Remember that…

A: Given,F1 = 3.43 NF2 = 2.45 NNote: Taking the direction CCW from positive x axis,θ1 =30°θ2 =130°For…

Q: It was a snow day, so Eric and some friends went sledding. He boarded his 60-inch sled and descended…

A:

Q: You drop an object of mass m from a tall building. Suppose the only forces affecting its motion are…

A:

Q: with an initial speed of 8.10 m/s stops propelling himself and begins to coast across the ice,…

A:

Q: A crate sits on a horizontal floor that has µk is not equal 0.You push the crate with a horizontal…

A: A crate placed on a horizontal surface

Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…

A: Given: The mass of the object is 5.1 kg. P→=-2.1i^+4.25k^ N The velocity of the object is constant.

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: