(a) What magnitude force is required to give a ¬helicopter of mass 2M an acceleration of 0.10 g upward? (b) What work is done by this force as the helicopter moves a distance h/2 upward?
Answers
It's simple buddy
Use F =ma
Here m=2M and a=. 1g
So F=2M*0.1g
=0.2Mg
And work done can be calculated by work energy theorm
So work done = stored potential energy
= mgh
= 2M*0.1g*h/2
= 0.1Mgh
Thats it
Answer:
It is not possible to determine the exact work done by the force.
Explanation:
From the above question,
They have given :
(a) The force required to give the helicopter an acceleration of 0.10 g upward can be calculated as follows:
Force = Mass * Acceleration
= 2M * 0.10 * 9.8 m/s^2 = 19.6 Mg N
where Mg is the acceleration due to gravity and N is the unit for force.
(b) The work done by this force as the helicopter moves a distance h/2 upward can be calculated as follows:
Work = Force * Distance
= 19.6 Mg N * (h/2)
where h is the height that the helicopter moves upward and the distance h/2 is the displacement in the upward direction. The value of h is not given, so it is not possible to determine the exact work done by the force.
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