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AleksAgata [21]
3 years ago
7

If a force does not act parallel to the resulting displacement, what is the effect on the work done by the force? 

Physics
1 answer:
m_a_m_a [10]3 years ago
8 0
Then only the component of the force that's parallel to the displacement
is used to calculate the work.  The component of force that's perpendicular
to the displacement  doesn't move through any distance at all, so its contribution
to the total work is zero.
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You throw a ball downward from a window at a speed of 2.5 m/s. how fast will it be moving when it hits the sidewalk 2.1 m below?
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List out all the variables that you do know; 

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3 years ago
Which contributes most to our average dose of background radiation?
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A 0.25-kg ball attached to a string is rotating in a horizontal circle of radius 0.5 m twice every second, what is the tension i
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Answer:

T = 19.75 N

Explanation:

given,

mass of ball = 0.25 Kg

radius = 0.5 m

frequency = 2 s⁻¹

tension in the string = ?

angular velocity

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Tension in the string is equal to T = 19.75 N

3 0
3 years ago
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