Physics, 13.02.2022 02:20 antonypaz6583
Q1.
The diagram shows a helicopter being used to rescue a person from the sea.
(a)
(i)
The mass of the rescued person is 72 kg.
Use the equation in the box to calculate the weight of the rescued person.
gravitational field strength = 10 N/kg
Show clearly how you work out your answer.
Weight = N
An electric motor is used to lift the person up to the helicopter. The motor lifts the person at a constant speed.
State the size of the force, T, in the cable.
Force T = N
Answers: 2
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Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude
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A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.
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Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
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Q1.
The diagram shows a helicopter being used to rescue a person from the sea.
(a)
(i)...
(a)
(i)...
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