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2 years ago

how far will a freely falling object have fallen from a position of rest when its instantaneous speed is 10m/s ?

Physics

1 answer:

Andreyy892 years ago

7 0

Answer:

A freely falling object have fallen from a position of rest when its instantaneous speed is 10 m/s, it will travel 5.102 meter.

Explanation:

We have equation of motion, $v^2=u^2+2as$ , where u is the initial velocity, u is the final velocity, s is the displacement and a is the acceleration.

In this case we have final velocity = 10 m/s, initial velocity = 0 m/s, and acceleration = 9.8 $m/s^2$ .

Substituting

$10^2=0^2+2*9.8*s\\ \\ s=5.102 meter$

A freely falling object have fallen from a position of rest when its instantaneous speed is 10 m/s, it will travel 5.102 meter.

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Answer:

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Explanation:

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A car increases its speed from 9.6 meters per second to 11.2 meters per second in 4.0 seconds. The average acceleration of the c

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2 years ago

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Vlad1618 [11]

Answer:

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Explanation:

To find B_o you take into account the formula for the emf:

$\epsilon=-\frac{d\Phi_b}{dt}=-\frac{dBAcos\theta}{dt}=-Acos\theta\frac{dB}{dt}$

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By applying the derivative you obtain:

$\epsilon=-Acos\theta (2\pi f) B_ocos(2\pi f t+ \alpha)$

when the emf is maximum the angle between B and the normal to A is zero, that is, cosθ = 1 or -1. Furthermore the cos function is 1 or -1. Hence:

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2 years ago

Can a force directed north balance a force directed east

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2 years ago

6. Two blocks are released from rest at the same height. Block A slides down a steeper ramp than Block B. Both ramps are frictio

Stolb23 [73]

Answer:

a. the work done by the gravitational force on Block A is less than the work done by the gravitational force on Block B.

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Explanation:

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c. The momentum is calculated as follows:

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Given that both bocks has the same speed, then, the bigger the mass, the bigger the momentum.

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2 years ago