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2:20 AT&T NIGER A paratrooper is initially falling downward at a speed of 27.5 m/s before...
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?
hello, if you could help with part 1 and 2, that would be great, thank you!...
hello, if you could help with part 1 and 2, that would be
great, thank you!
A paratrooper is initially falling downward at a speed of 32.0 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 75.0 m/s2. LL ament Part 1 If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 4.00 m/s? (Actually the acceleration is not constant in this case, but the...
A sky diver jumps from a helicopter and is falling straight down at 30 m/s when...
A sky diver jumps from a helicopter and is falling straight down at 30 m/s when her parachute opens. From then on, her downward acceleration is approximately = g - cv^2, where g = 9.81 m/s^2 and c is a constant. After an initial "transient" period the descends at a nearly constant velocity of 5 m/s. (a) What is the value of c, and what are its 9 units? (b) What maximum deceleration is the sky diver subjected to? (c)...
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...
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a...
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a constant downward acceleration of magnitude 3.92 m/s2 for 2.97 s (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction !--Select--# (b) How far did it move during the 2.97 s interval?
Chapter 2, Problem 2/084 Multistep A sprinter practicing for the 200-m dash accelerates uniformly from rest...
Chapter 2, Problem 2/084 Multistep A sprinter practicing for the 200-m dash accelerates uniformly from rest at A and reaches a top speed of 39 km/h at the 68-m mark. He then maintains this speed for the next 66 meters before uniformly slowing to a final speed of 34 km/h at the finish line. Determine the maximum horizontal acceleration which the sprinter experiences during the run. Where does this maximum acceleration value occur? Finish line 39.9 m â–¼Part 1 Your...
An elevator is initially moving upward at a speed of 13.08 m/s. The elevator experiences a...
An elevator is initially moving upward at a speed of 13.08 m/s. The elevator experiences a constant downward acceleration of magnitude 4.16 m/s2 for 2.79 s. (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction ---Select--- upward downward none (b) How far did it move during the 2.79 s interval?
At time t = 0 s, automobile A is traveling at a speed of 17.5 m/s...
At time t = 0 s, automobile A is traveling at a speed of 17.5 m/s along a straight road and is picking up speed with an acceleration that has a magnitude of 4.00 m/s2 as in part a of the figure. At t = 0 s, automobile B is traveling at a speed of 17.5 m/s in uniform circular motion as it negotiates a turn (part b of the figure). It has a centripetal acceleration whose magnitude is also...
At a time t 2.90 s, a point on the rim of a wheel with a radius of 0.240 m has a tangential speed of 50.0 m/s as the wheel slows down with a tangential acceleration of constant magnitude 10.2 m/s2.
At a time t 2.90 s, a point on the rim of a wheel with a radius of 0.240 m has a tangential speed of 50.0 m/s as the wheel slows down with a tangential acceleration of constant magnitude 10.2 m/s2. Part A Calculate the wheel's constant angular acceleration Part B Calculate the angular velocity at t 2.90 s Part C 0. Calculate the angular velocity at t =0 Part D Through what angle did the wheel turn between t = 0 and t...
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?
hello, if you could help with part 1 and 2, that would be
great, thank you!
A paratrooper is initially falling downward at a speed of 32.0 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 75.0 m/s2. LL ament Part 1 If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 4.00 m/s? (Actually the acceleration is not constant in this case, but the...
A sky diver jumps from a helicopter and is falling straight down at 30 m/s when her parachute opens. From then on, her downward acceleration is approximately = g - cv^2, where g = 9.81 m/s^2 and c is a constant. After an initial "transient" period the descends at a nearly constant velocity of 5 m/s. (a) What is the value of c, and what are its 9 units? (b) What maximum deceleration is the sky diver subjected to? (c)...
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...
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a constant downward acceleration of magnitude 3.92 m/s2 for 2.97 s (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction !--Select--# (b) How far did it move during the 2.97 s interval?
Chapter 2, Problem 2/084 Multistep A sprinter practicing for the 200-m dash accelerates uniformly from rest at A and reaches a top speed of 39 km/h at the 68-m mark. He then maintains this speed for the next 66 meters before uniformly slowing to a final speed of 34 km/h at the finish line. Determine the maximum horizontal acceleration which the sprinter experiences during the run. Where does this maximum acceleration value occur? Finish line 39.9 m â–¼Part 1 Your...
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