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Alex73 [517]
3 years ago
8

How long will it take for a body

Physics
1 answer:
Daniel [21]3 years ago
7 0

<u>We are given:</u>

Initial velocity (u) = 0 m/s            [starting from rest]

Final velocity (v) = 10 m/s

Acceleration (a) = 2 m/s²

Time taken = t

<u>Solving for time taken:</u>

v = u + at             [first equation of motion]

10 = 0 + (2)(t)       [plugging the values]

10 = 2t

t = 5 seconds

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United States forest service

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what are you asking?

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2. Newton's laws of motion
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The magnetic field at the equator points north. If you throw a positively charged object (for example, a baseball with some elec
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The magnetic force points in the positive z-direction, which corresponds to the upward direction.

Option 2 is correct, the force points in the upwards direction.

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The magnetic force on any charge is given as the cross product of qv and B

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where q = charge on the ball thrown = +q (Since it is positively charged)

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F = qv × B = (+qvî) × (Bj)

F =

| î j k |

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F = (qvB)k N

The force is in the z-direction.

We could also use the right hand rule; if we point the index finger east (direction of the velocity), the middle finger northwards (direction of the magnetic field), the thumb points in the upward direction (direction of the magnetic force). Hence, the magnetic force is acting upwards, in the positive z-direction too.

Hope this Helps!!!

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