The astronaut bythe force from the helicopter

Reference no: EM13654168

A helicopter lifts a 70 kg astronaut13 m vertically from the ocean by means ofa cable. The acceleration of the astronaut is g/10.

a) How much work is done on the astronaut bythe force from the helicopter?
b) How much work is done on the astronaut by her weight?
c)What is the kinetic energy?
d) What is the speed of the astronaut just before she reaches the helicopter?

Reference no: EM13654168

Questions Cloud

Amplitude of the electric field induced by the variation : The magnetic field of a cylindrical magnet that has a pole-face diameter of 4.5 cm can be varied sinusoidally between 29.5 T and 31 T at a frequency of 15 Hz. At a radial distance of 1.8 cm, what is the amplitude of the electric field induced by the ..

Determine the work done on the gas : A 3.25 mol sample of an ideal diatomic gas expandsadiabatically from a volume of 0.1990 m^3 to 0.704 m^3.Initially the pressure was 1.00 atm..

Lineages make up the living amniota : Which of the following lineages make up the living Amniota

What amount of mass is this energy equivalent : Radium is a radioactive element whose nucleus emits an alphaparticle (a helium nucleus) that has a kinetic energy of about 6.5x 10-13 J (4.1 MeV). To what amount of mass is this energy equivalent?

The astronaut bythe force from the helicopter : A helicopter lifts a 70 kg astronaut13 m vertically from the ocean by means ofa cable. The acceleration of the astronaut is g/10.

Estimate how many molecules of air are in each : Estimate how many molecules of air are in each 1.9 L breath you take that were also in the lastbreath Einstein took (assumed to be the same volume).

Coin slides frictionless plane-across xycoordinate system : A coin slides over a frictionless plane and across an xycoordinate system from the origin to a point with xycoordinates (3.0 m, 4.4 m) while aconstant force acts on it.

What magnitude f is required for the decelerating force : A luge and its rider, with a total mass of 115 kg, emerge from a downhill track onto a horizontalstraight track with an initial speed of 40m/s. Assume that they stop with a constant deceleration of1.8 m/s2.

Compute the work done by the force in the third second : A force of 4.7 N acts on a 14 kg body initially at rest. Compute the work done by the force in thefirst second. Compute the work done by the force in the second second. Compute the work done by the force in the third second.

User Account

All Pages