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kenny6666 [7]
2 years ago
12

A sort of "projectile launcher" is shown below. A large current moves in a closed loop composed of fixed rails, a power supply,

and a very light, almost frictionless bar touching the rails. A magnetic field is perpendicular to the plane of the circuit. The bar has a length of 20 cm, a mass of 1.2 g, and is placed in a field of 1.7 T.
a) What constant current flow is needed in order for it to accelerate to 33 m/s in a distance of 1.0 m?

b) In what direction must the field point?

PLEASE ANSWER OR ATLEAST TRY!!! Please and thank you.
Physics
1 answer:
Zarrin [17]2 years ago
3 0

Answer:

wallah i don't understand anything with my stoopid brain

Explanation:

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Signment
jeka94

Answer:

v = 5.15 m/s

Explanation:

At constant velocity, the cable tension will equal the car weight of 984(9.81) = 9,653 N

As the cable tension is less than this value, the car must be accelerating downward.

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