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8. A sky diver reaches a terminal velocity of 120 mph. What will the acceleration of...
A sky diver with a mass of 75.0kg jumps out of an airplane as part of a local air show
2. A sky diver with a mass of 75.0kg jumps out of an airplane as part of a local air show.a. Calculate the drag force on the sky diver when she reaches her terminal velocity.b. Each cord connecting the sky diver and her parachute is rated to hold up to 105N of tension. How many cords must the parachute have in order to ennsure safe operation when the sky diver opens the parachute after she reaches terminal velocity?c. Upon opening,...
1. If a sky-diver jumps out of a plane, two forces will act on him, gravity...
1. If a sky-diver jumps out of a plane, two forces will act on him, gravity and air resistance. If we assume air resistance is proportional to the velocity, we get the total force on the sky diver will be F = −gm − kv, where g is a acceleration due to gravity on the surface of the earth, m is the mass of the sky-diver, v is the velocity of the sky-diver, and k is constant of proportionality for...
1. Consider a sky diver in free fall (a) Draw a free body diagram showing the...
1. Consider a sky diver in free fall (a) Draw a free body diagram showing the forces acting on the sky diver. Note that the drag force will be proprtional to velocity squared, and act in the opposite direction to velocity. (b) Apply Newton's 2nd Law to model the skydiver's velocity with a 1st order ODE, treating down as the positive direction. Present your ODE in standard form (c) A skydiver has a mass of 90 kg, and a drag...
(b) An asteroid of mass M falls through the Earth's atmosphere and reaches terminal velocity. Assume...
(b) An asteroid of mass M falls through the Earth's atmosphere and reaches terminal velocity. Assume that the atmosphere is a turbulent fluid, so that a drag force is exerted on an object moving at velocity v. The quantity b is a constant. You can assume that the motion is sufficiently close to the Earth that the acceleration due to gravity is constant. (i) Explain what you understand by "turbulent flow" 121 (ii) Use Newton's Second Law to determine an...
Write neat please. Show step by step please. Read instructions carefully. do all problems please. double...
Write neat please. Show step by step please. Read
instructions carefully. do all problems please. double check your
work. Box in answer please. Thank you
Question 5 1 pts The force required to maintain an object at a constant velocity in free space is equal to the weight of the object. the force required to stop it. O zero. the mass of the object. None of the other answers are correct. Question 6 1 pts A skydiver who weighs 500...
If a dense 20.0-kg object is falling in air at half its terminal velocity (drag force...
If a dense 20.0-kg object is falling in air at half its terminal velocity (drag force is proportional to the square of the object’s speed), what is the drag force on the object at this moment? a. 25 N b. 50 N c. 75 N d. 100 N e. 150 N
Ng 20uu n object of mass 8 kg is given an initial downward velocity of 30 m/sec and then allowed ...
ng 20uu n object of mass 8 kg is given an initial downward velocity of 30 m/sec and then allowed to fall under the y. Assume the force in newtons due to air resistance is -8e, where v is the velocity of the o object in m/sec. Assume the obj ect is initially 800m above the ground. JAssume the gravitational force constant, with g-9.8m/sec?, sign of g depends on your setting] (a) Write a DE describing the motion.[Hint: See pages...
1. A ball is thrown straight up with an initial speed of 30 m/s. How much...
1. A ball is thrown straight up with an initial speed of 30 m/s. How much time does it take for the ball to reach the top of it's trajectory? 2. For 3.0s, Allison exerts a net force of 10.0 N on a 6.7-kg shopping cart that was initially at rest. Find the acceleration of the cart, and show that it moves a distance of 6.7m. 3. Suzie skydiver with her parachute has a mass of 50 kg. Before opening...
WH3 Weekly Homework#3 Part B a. Compute velocity, acceleration and force acting on a 2.0-Kg mass...
WH3 Weekly Homework#3 Part B a. Compute velocity, acceleration and force acting on a 2.0-Kg mass which is attached to a string of radius R=1.5 meters and performs a full rotation in 2.0 seconds. b. The string breaks if the force reaches 20 N. Can we whirl the mass at the speed of 5.0 m/s without breaking the string? c. What is the maximum speed that the mass can reach before breaking the string?
10: A powerful motorcycle can produce an acceleration of while traveling at 90.0 km/h. At that...
10: A powerful motorcycle can produce an acceleration of while traveling at 90.0 km/h. At that speed the forces resisting motion, including friction and air resistance, total 400 N. (Air resistance is analogous to air friction. It always opposes the motion of an object.) What is the magnitude of the force the motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245 kg? The powerful motorcycle, a chopper, in Problem...
1. Consider a sky diver in free fall (a) Draw a free body diagram showing the forces acting on the sky diver. Note that the drag force will be proprtional to velocity squared, and act in the opposite direction to velocity. (b) Apply Newton's 2nd Law to model the skydiver's velocity with a 1st order ODE, treating down as the positive direction. Present your ODE in standard form (c) A skydiver has a mass of 90 kg, and a drag...
(b) An asteroid of mass M falls through the Earth's atmosphere and reaches terminal velocity. Assume that the atmosphere is a turbulent fluid, so that a drag force is exerted on an object moving at velocity v. The quantity b is a constant. You can assume that the motion is sufficiently close to the Earth that the acceleration due to gravity is constant. (i) Explain what you understand by "turbulent flow" 121 (ii) Use Newton's Second Law to determine an...
Write neat please. Show step by step please. Read
instructions carefully. do all problems please. double check your
work. Box in answer please. Thank you
Question 5 1 pts The force required to maintain an object at a constant velocity in free space is equal to the weight of the object. the force required to stop it. O zero. the mass of the object. None of the other answers are correct. Question 6 1 pts A skydiver who weighs 500...
ng 20uu n object of mass 8 kg is given an initial downward velocity of 30 m/sec and then allowed to fall under the y. Assume the force in newtons due to air resistance is -8e, where v is the velocity of the o object in m/sec. Assume the obj ect is initially 800m above the ground. JAssume the gravitational force constant, with g-9.8m/sec?, sign of g depends on your setting] (a) Write a DE describing the motion.[Hint: See pages...
WH3 Weekly Homework#3 Part B a. Compute velocity, acceleration and force acting on a 2.0-Kg mass which is attached to a string of radius R=1.5 meters and performs a full rotation in 2.0 seconds. b. The string breaks if the force reaches 20 N. Can we whirl the mass at the speed of 5.0 m/s without breaking the string? c. What is the maximum speed that the mass can reach before breaking the string?
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