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A sky diver jumps from a helicopter and is falling straight down at 30 m/s when...
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,...
A 85 kg sky diver jumps out of a plane at an altitude of 700 m....
A 85 kg sky diver jumps out of a plane at an altitude of 700 m. After the skydiver falls for a period the parachute opens and lands with a speed of 3.6 m/s. What is the energy dissipated by the parachute during the dive? 75 kJ 14 kJ 114 kJ 1.8 kJ
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...
A paratrooper is initially falling downward at a speed of 27.9 m/s before her parachute opens....
A paratrooper is initially falling downward at a speed of 27.9 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 73 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.20 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.) (b) How far does the paratrooper fall during this time interval?
A paratrooper is initially falling downward at a speed of 29.1 m/s before her parachute opens....
A paratrooper is initially falling downward at a speed of 29.1 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 67 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.50 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.) (b) How far does the paratrooper fall during this time interval?
Note that the answer is not: - 0 m/s^2 - 7.848 m/s^2 A skydiver jumps off...
Note that the answer is
not:
- 0 m/s^2
- 7.848 m/s^2
A skydiver jumps off of an airplane. The plane flies at an altitude of 4 km, and at a speed of 100 km/hr. The skydiver "jumps" by simply letting go of the plane and falling out. Gravity is the only thing affecting their motion until they open their parachute at a height of 2.5 km. After opening their parachute, they experience constant acceleration until they land perfectly, with...
A 3900 kg car is parked at the top of an 8.7 m long driveway that...
A 3900 kg car is parked at the top of an 8.7 m long driveway that is sloped at 17? with the horizontal. The parking brake fails. If an average friction force of 4200 N im- pedes the motion, find the speed of the car at the bottom of the driveway. The acceleration of gravity is 9.8 m/s2 . Starting from rest, a 10.0 kg suitcase slides 3.00 m down a frictionless ramp inclined at 31.0? from the floor. The...
The acceleration (a vector quantity) of gravity on a sky diver is 9.8 m/s. If the force of the wind also causes an acce...
The acceleration (a vector quantity) of gravity on a sky diver is 9.8 m/s. If the force of the wind also causes an acceleration of 1.9 m/s- at an angle of 13° above the horizontal, what is the resultant acceleration of the sky diver? Set up the problem by representing each force as a vector. Let S represent the downward force on the sky diver due to gravity, let W represent the upward force on the sky diver due to...
A helicopter is slowly accelerating straight upwards at a rate of 1.6 m/s². If the helicopter...
A helicopter is slowly accelerating straight upwards at a rate of 1.6 m/s². If the helicopter blades have to generate an upward force of 8400 N in order to cause this, then what must be the mass of the helicopter? (Take the acceleration of gravity g = 9.81 ) 92 * kg Now suppose the helicopter pilot reaches his desired speed, and no longer wants to accelerate (just maintain his upward velocity). How much force will the blades have to...
A sky diver drops his smuggled 1kg weight from physics lab out of the air plane...
A sky diver drops his smuggled 1kg weight from physics lab out of the air plane before he jumps, which is flying horizontally going 175 m/s at a height of 2 km. IF WE ASSUME NO AIR RESISTANCE, what is the Velocity (magnitude and direction) when it hits the ground? If an object initially at rest is given a velocity of: V-1.93 m/s and vy 2.51 m/s. What is the magnitude and direction its displacement after a time of 3.50...
A 85 kg sky diver jumps out of a plane at an altitude of 700 m. After the skydiver falls for a period the parachute opens and lands with a speed of 3.6 m/s. What is the energy dissipated by the parachute during the dive? 75 kJ 14 kJ 114 kJ 1.8 kJ
A paratrooper is initially falling downward at a speed of 27.9 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 73 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.20 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.) (b) How far does the paratrooper fall during this time interval?
Note that the answer is
not:
- 0 m/s^2
- 7.848 m/s^2
A skydiver jumps off of an airplane. The plane flies at an altitude of 4 km, and at a speed of 100 km/hr. The skydiver "jumps" by simply letting go of the plane and falling out. Gravity is the only thing affecting their motion until they open their parachute at a height of 2.5 km. After opening their parachute, they experience constant acceleration until they land perfectly, with...
The acceleration (a vector quantity) of gravity on a sky diver is 9.8 m/s. If the force of the wind also causes an acceleration of 1.9 m/s- at an angle of 13° above the horizontal, what is the resultant acceleration of the sky diver? Set up the problem by representing each force as a vector. Let S represent the downward force on the sky diver due to gravity, let W represent the upward force on the sky diver due to...
A helicopter is slowly accelerating straight upwards at a rate of 1.6 m/s². If the helicopter blades have to generate an upward force of 8400 N in order to cause this, then what must be the mass of the helicopter? (Take the acceleration of gravity g = 9.81 ) 92 * kg Now suppose the helicopter pilot reaches his desired speed, and no longer wants to accelerate (just maintain his upward velocity). How much force will the blades have to...
A sky diver drops his smuggled 1kg weight from physics lab out of the air plane before he jumps, which is flying horizontally going 175 m/s at a height of 2 km. IF WE ASSUME NO AIR RESISTANCE, what is the Velocity (magnitude and direction) when it hits the ground? If an object initially at rest is given a velocity of: V-1.93 m/s and vy 2.51 m/s. What is the magnitude and direction its displacement after a time of 3.50...
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