A 136 kg object experiences an 839newton force over distance of 4.9 m before being launched off a 10 mm cliff how far away from the base of the cliff does the object land
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A 136 kg object experiences an 839newton force over distance of 4.9 m before being launched off a 10 mm cliff how far away from the base of the cliff does the object land
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- A 5.0 kg cannonball is fired horizontally at 60 m/s from a 14-m-high cliff. A strong tailwind exerts a constant 12 N horizontal force in the direction the cannonball is traveling. How much extra distance does the cannonball travel due to the wind?Dave with a mass of 60 kg goes tubing down a 20 m long hill that has an angle off the horizon of 25º. (Gravity applies) a. He gets a push from the bottom of the hill, so his initial velocity is 2 m/s. How far up the hill will he go before stopping? (there’s no friction) b. He goes back down the hill and then his friend Jill tries to pull him on the tube across a small patch of grass (μk=0.30). If she is pulling parallel to the ground at constant 5 m/s for 5 sec how much power does she expend? c. After climbing back uphill, Dave decided to roll down the hill instead. If he were to be a long cylinder with a radius of 0.1 m, what is his moment of inertia? d. After rolling without slipping down the hill, what is Dave’s final velocity at the bottom of the hill? What is his angular velocity at the bottom of the hill? Dave with a mass of 60 kg goes tubing down a 20 m long hill that has an angle off the horizon of 25º. (Gravity applies) He gets a push from the bottom of the hill, so his…The parachute on a race car of weight 8010 N opens at the end of a quarter mile run when the car is traveling at 35.6 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1070 m?
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- A football is thrown from an initial height of 1.75 m above the ground. The football's initial velocity components are Vi= 6.65 m/s and Vyi = 5.20 m/s. Determine the football's maximum height above the ground. Ignore air resistance and any other nonconservative forces. mAn 85 kg man lowers himself to the ground from a height of 10.0 m by holding onto a rope that runs over a frictionless pulley to a 65 kg sandbag. With what speed does the man hit the ground if he started from rest?6. A 15kg-particle moves in æyz – plane experience a force of F = 12 N i – 20 N j + 10 N k. Determine the acceleration vector of the particle.
- Somone is standing on a piece of cardboard holding a wire that is attached to a vehicle. The friction between the cardboard and road is 67N. The wire makes a 24° angle with the road. The tension on the wire is 134N. If they start from rest how long does it take them to reach a speed of 14m/s and how far have they traveled? The mass of the person and the cardboard is 80kgA parachutist whose mass is 80 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b, = 30 N-sec/m when the chute is closed and b, = 90 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 20 m/sec, after how many seconds will the parachutist reach the ground? Assume that the acceleration due to gravity is 9.81 m/ sec.A 30 kg object at the origin and initially at rest experiences a force given by F = 3N vt î + 2N tĵ. What is the object's speed and direction after 20 s?
