1. Define friction. Name and describe two kinds of friction.
1 answer:
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Answer:
e = 65 mA
Explanation:
given,
number of turn = 1300
Area = 0.2 m²
B = 50 x 10⁻⁶T
t = 0.2 s
coil rotate in x-z plane
θ = 90° to θ = 0°
maximum induced emf
e =0.065
e = 65 mA
Complete Question
In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. He is so intent on gripping the ladder that he lets go of his briefcase of counterfeit money when he is 130 m above the water. If the briefcase hits the water 6.0 s later, what was the speed at which the helicopter was ascending?
Answer:
The speed of the helicopter is
Explanation:
From the question we are told that
The height at which he let go of the brief case is h = 130 m
The time taken before the the brief case hits the water is t = 6 s
Generally the initial speed of the briefcase (Which also the speed of the helicopter )before the man let go of it is mathematically evaluated using kinematic equation as
Here s is the distance covered by the bag at sea level which is zero
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