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3 years ago

15

What is causing the boat to move toward the shore?

2 answers:

choli [55]3 years ago

8 0

Answer:

<em>It's C. Because this is a Newton's 2nd Law about force and acceleration and he's putting force on the oars which is making the boat goe forward due to the water and the movements.</em>

Explanation:

ivann1987 [24]3 years ago

4 0

Answer:c

Explanation:because when u push the oar back u go forward

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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

Levart [38]

Answer:

The moment arm is 0.6 m

Explanation:

Given that,

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

Distance r = 0.2 m

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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

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$F_{1}$ =First force

$F_{2}$ =Second force

$r_{1}$ = distance

Put the value into the formula

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

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prohojiy [21]

Answer:

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Time = Distance / Speed

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Time taken by the boat to get across is 133.33 seconds

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Speed = Distance / Time

$Speed=\frac{150}{\frac{100}{0.75}}=1.125\ m/s$

Velocity of the water is 1.125 m/s

From Pythagoras theorem

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So, the man's velocity relative to the shore is 1.35208 m/s

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