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3 years ago

What is the acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg

Physics

1 answer:

Marrrta [24]3 years ago

5 0

Answer:

The acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg is 3.2 m/s².

Explanation:

Given

Force F = 4000 N

Mass m = 1240 kg

To determine

Acceleration a = ?

Important Tip:

The acceleration of a boat can be found using the formula F = ma

Using the formula

$F = ma$

where

F is the force (N)

m is the mass (kg)

a is the acceleration (m/s²)

now substituting F = 4000, m = 1240 in the formula

$F = ma$

$4000\:=\:1240\:\times a$

Switch sides

$1240a=4000$

Divide both sides by 1240

$\frac{1240a}{1240}=\frac{4000}{1240}$

Simplify

$a=\frac{100}{31}$

$a=3.2$ m/s²

Therefore, the acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg is 3.2 m/s².

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coldgirl [10]

Answer: from the vertical, one should aim 86.6°

Explanation:

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now using the equation of motion

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x = 6.95 - 1/2gt² .........let this be equ 1

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also vertical position of the bullet after t is

y = y₀ + c(sin∅)t - 1/2gt²

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After time t. the vertical position x and y are same, else the bullet wouldn't have strike target at centre, so;

x = y

we substitute

equ 1 = equ 3

6.95 - 1/2gt² = 1 + 365.76(sin∅)t - 1/2gt²

6.95 - 1 = 365.76(sin∅)t - 1/2gt² + 1/2gt²

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therefore from the vertical, one should aim (90° - 3.40°) = 86.6°

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4 years ago

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As we can see, there is a common difference of -6.

Then, if a number of the sequence is given, the next one can be found by adding -6 (which is the same as subtracting 6).

Notice that the first term of the sequence is 3.

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1 year ago

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Murrr4er [49]

Answer:

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3 years ago

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Answer:

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Thus,

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