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3 years ago

Please the answer with steps

Physics

1 answer:

Mamont248 [21]3 years ago

5 0

Answer:

Is safe to use the bag.

Explanation:

To solve this problem we must use Newton's second law which tells us that the resulting force is equal to the product of mass by acceleration.

F = m*a

where:

F = force [N] (units of Newtons)

m = mass = 15 [kg]

a = acceleration = 7 [m/s²]

Now replacing these values in the previous equation:

F = 15*7

F = 105 [N]

F < 230 [N]

The force of 105 [N] is lesser than the maximum resistance force, therefore is safe to use the bag.

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Find the distance along an arc on the surface of the earth that subtends a central angle of 1 minutes (1 minute = 1/60 degree).

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Answer:

1.152 miles

Explanation:

Given: central angle = 1 minute = $(\frac{1}{60}) ^{o}$

radius of the earth = 3960 miles

The length of an arc = $\frac{\alpha }{360^{o} }$ 2 $\pi$ r

where: $\alpha$ is the central angle, and r is the radius.

Thus,

Distance along the arc = $\frac{\alpha }{360^{o} }$ 2 $\pi$ r

Distance along the arc = $\frac{(\frac{1}{60}) ^{o} }{360^{o} }$ x 2 x $\frac{22}{7}$ x 3960

= $\frac{(\frac{1}{60}) ^{o} }{360^{o} }$ x 24891.4286

= 1.1524

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