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4 years ago

The equation for distance is d = st. How far does a car go in 10 seconds at a speed of 44 m/s?

Physics

1 answer:

nignag [31]4 years ago

8 0

Answer:

44(speed) x 10(time) = 440(distance). So the answer is 440 meters.

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3 years ago

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4 years ago

A uniform plank of length 6.1 m and mass 33 kg rests horizontally on a scaffold, with 1.6 m of the plank hanging over one end of

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Explanation:

consider the principle of moment

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3 years ago

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A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). Before being caught, the baseba

Xelga [282]

Answer:

$v_t=46.4532\ m.s^{-1}$

Explanation:

Given:

Linear horizontal speed of the ball, $v_x=42.5\ m.s^{-1}$

distance travelled by the ball, $x=17.4\ m$

angle rotated by the ball, $\theta=44.1\ rad$

radius of the ball, $r=3.67\ cm=0.0367\ m$

the time for which the ball travels:

$t=\frac{x}{v_x}$

$t=\frac{17.4}{42.5}$

$t=0.4094\ s$

Angular speed of the ball:

$\omega=\frac{\theta}{t}$

$\omega=\frac{44.1}{0.4094}$

$\omega=107.7155\ rad.s^{-1}$

Now the tangential speed at the equator of the ball:

$v_t=r.\omega+v_x$ (the tangential speed due to rotation and the linear speed are having the same direction)

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4 years ago