A helicopter lifts a 67 kg astronaut 20 m vertically from the ocean by means of...
A helicopter lifts a 67 kg astronaut 20 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/12. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed? (a) Number Units (b) Number Units (c) Number Units (d) Number Units SHOW HINT
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A helicopter lifts a 67 kg astronaut 20 m vertically from the
ocean by means of...
A helicopter lifts a 76 kg astronaut 14 m vertically from the ocean by means of...
A helicopter lifts a 76 kg astronaut 14 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/14. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed?
Chapter 07, Problem 017 A helicopter lifts a 81 kg astronaut 19 m vertically from the...
Chapter 07, Problem 017 A helicopter lifts a 81 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/11. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed? (a) Number (b) Number | (c) Number (d) Number Units Units Units Units
A helicopter lifts a 66.5 kg astronaut 13.7 m vertically from the ocean by means of...
A helicopter lifts a 66.5 kg astronaut 13.7 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. How much work is done on the astronaut by the force from the helicopter? 9.82x103 3 You are correct. Previous Tries Your receipt no. is 162-8512 How much work is done on the astronaut by the gravitational force on her? 8928.29 J Submit Answer You have entered that answer before Incorrect. Tries 3/10 Previous Tries...
A 19600 kg helicopter lifts a 5600 kg truck with an upward acceleration of 1.1 m/s2....
A 19600 kg helicopter lifts a 5600 kg truck with an upward acceleration of 1.1 m/s2. Calculate (a) the net upward force on the helicopter blades from the air and (b) the tension in the cable between the helicopter and truck. (a) Number Units (b) Number Units
A helicopter lifts a load vertically with a = 1.50 m/s^2. If the cable is made...
A helicopter lifts a load vertically with a = 1.50 m/s^2. If the cable is made of steel, d=7.00 mm, and the load is 1000 kg, what is the stress and the strain in the cable?
help with part 5 1. A 125-kg load is lifted 12.0 m vertically with an acceleration...
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
A 270-kg load is lifted 24.0 m vertically with an acceleration a=0.170 g by a single...
A 270-kg load is lifted 24.0 m vertically with an acceleration a=0.170 g by a single cable. a. Determine the tension in the cable. b. Determine the net work done on the load. c. Determine the work done by the cable on the load. d. Determine the work done by gravity on the load. e. Determine the final speed of the load assuming it started from rest.
C Exercise 5.14 A 740 kg, light-weight helicopter ascends from the ground with an acceleration of 4.00 m/s Part A...
C Exercise 5.14 A 740 kg, light-weight helicopter ascends from the ground with an acceleration of 4.00 m/s Part A Over a 3.50 s interval, what is the work done by the lifting force? O AD OB ? W Submit Request Answer Part B What is the work done by the gravitational force? AED ROO ? < Trabajo C Exercise 5.14 A 740 kg. light-weight helicopter ascends from the ground with an acceleration of 400 m/s. 00 AED ROO? Submit...
A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by...
A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 2.80 m/s; (b) he is then lifted at the constant speed of 2.80 m/s; (c) finally he is decelerated to zero speed. How much work is done on the 61.0 kg rescue by...
The figure shows a ball with mass m = 0.237 kg attached to the end of...
The figure shows a ball with mass m = 0.237 kg attached to the end of a thin rod with length L = 0.607 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed...
Chapter 07, Problem 017 A helicopter lifts a 81 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/11. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed? (a) Number (b) Number | (c) Number (d) Number Units Units Units Units
A helicopter lifts a 66.5 kg astronaut 13.7 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. How much work is done on the astronaut by the force from the helicopter? 9.82x103 3 You are correct. Previous Tries Your receipt no. is 162-8512 How much work is done on the astronaut by the gravitational force on her? 8928.29 J Submit Answer You have entered that answer before Incorrect. Tries 3/10 Previous Tries...
A 19600 kg helicopter lifts a 5600 kg truck with an upward acceleration of 1.1 m/s2. Calculate (a) the net upward force on the helicopter blades from the air and (b) the tension in the cable between the helicopter and truck. (a) Number Units (b) Number Units
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
C Exercise 5.14 A 740 kg, light-weight helicopter ascends from the ground with an acceleration of 4.00 m/s Part A Over a 3.50 s interval, what is the work done by the lifting force? O AD OB ? W Submit Request Answer Part B What is the work done by the gravitational force? AED ROO ? < Trabajo C Exercise 5.14 A 740 kg. light-weight helicopter ascends from the ground with an acceleration of 400 m/s. 00 AED ROO? Submit...
A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 2.80 m/s; (b) he is then lifted at the constant speed of 2.80 m/s; (c) finally he is decelerated to zero speed. How much work is done on the 61.0 kg rescue by...
The figure shows a ball with mass m = 0.237 kg attached to the end of a thin rod with length L = 0.607 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed...
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