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3 years ago

15

You travel an an average speed of 20 km/h in a straight line to get to your grandmothers house. It takes you 3 hours to get to h

er house. How far away is her house from where you started?

1 answer:

Ber [7]3 years ago

6 0

20km every 1 hr is what 20km/hr means.

so 3hrs is 20km*3=60km.

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Answer:

10 km

Explanation:

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3 years ago

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3 years ago

What can you infer about the changes in the environment over time at the mystery fossil dig site? Record your inferences in the

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the fossil informed us about the climatic and geographical changes that occurs in the environment over time.

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1 year ago

In a fit of rage about distance learning, you throw your computer out the window with an initial velocity of 3 m/s and it breaks

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2 years ago

A 6 N and a 10 N force act on an object. The moment arm of the 6 N force is 0.2 m. If the 10 N force produces five times the tor

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Answer:

The moment arm is 0.6 m

Explanation:

Given that,

First force $F_{1}=6\ N$

Second force $F_{2}=10\ N$

Distance r = 0.2 m

We need to calculate the moment arm

Using formula of torque

$\tau=Force\times lever\ arm$

So, Here,

$\tau_{2}=5 \tau_{1}$

We know that,

The torque is the product of the force and distance.

Put the value of torque in the equation

$F_{2}\times d_{2}=5\times F_{1}\times r_{1}$

$r_{2}=\dfrac{5\times F_{1}\times r_{1}}{F_{2}}$

Where, $F_{1}$ =First force

$F_{1}$ =First force

$F_{2}$ =Second force

$r_{1}$ = distance

Put the value into the formula

$r_{2}=\dfrac{5\times6\times0.2}{10}$

$r_{2}=0.6\ m$

Hence, The moment arm is 0.6 m

6 0

3 years ago